WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.05AR2
Distribution Date: 04/25/2005

Class	Cusip	Orig Prin Bal	Begin Prin Bal	Int Rate Accrued	Int Rate Paid	Int Dist	Prin Dist	Int Shortfall	PPIS	Uncomp Int Shortfall	Prin Loss	Deferred Interest	Int Reimbursed	Unsched Int	Prin Reimbursed	Subsequent Recoveries	Total Dist	Ending Class Bal
1A1A	92922FC97	$412,241,000.00	$408,200,758.16	3.2050000000%	3.2050000000%	$1,126,577.40	$4,083,681.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$5,210,258.40	$404,117,077.16
1A1B	92922FE87	$45,805,000.00	$45,356,079.88	3.2650000000%	3.2650000000%	$127,519.88	$453,746.74	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$581,266.61	$44,902,333.14
2A1A	92922FD21	$609,705,000.00	$602,372,810.60	3.1850000000%	3.1850000000%	$1,652,091.10	$6,349,219.83	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$8,001,310.93	$596,023,590.77
2A1B	92922FD39	$406,478,000.00	$401,589,777.53	3.2450000000%	3.2450000000%	$1,122,164.55	$4,232,896.53	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$5,355,061.08	$397,356,881.00
2A2A1	92922FD47	$656,975,000.00	$649,074,351.11	3.2050000000%	3.2050000000%	$1,791,355.06	$6,841,470.38	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$8,632,825.44	$642,232,880.73
2A2A2	92922FD54	$391,500,000.00	$384,990,772.06	3.0950000000%	3.0950000000%	$1,026,053.88	$5,636,586.41	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$6,662,640.29	$379,354,185.65
2A2A3	92922FD62	$149,772,000.00	$149,772,000.00	3.2550000000%	3.2550000000%	$419,798.44	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$419,798.44	$149,772,000.00
2A2B	92922FD70	$211,456,000.00	$208,913,072.78	3.2550000000%	3.2550000000%	$585,565.93	$2,202,016.76	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$2,787,582.69	$206,711,056.02
2A3	92922FE95	$60,000,000.00	$59,278,452.10	3.2250000000%	3.2250000000%	$164,621.20	$624,815.59	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$789,436.79	$58,653,636.51
X	92922FD88	$0.00	$0.00	0.0000000000%	0.0000000000%	$1,848,303.89	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$1,848,303.89	$0.00
X_NOTIONAL	XXXXXXXXX	$3,267,405,771.83	$3,232,999,652.80	0.6860392531%	0.6860392531%	$1,848,303.89	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$1,848,303.89	$3,202,526,040.17
X_PO1	XXXXXXXXX	$0.00	$0.00	0.0000000000%	0.0000000000%	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
X_PO2	XXXXXXXXX	$0.00	$0.00	0.0000000000%	0.0000000000%	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
B1	92922FD96	$137,230,000.00	$137,220,627.18	3.4050000000%	3.4050000000%	$389,363.53	$20,863.79	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$410,227.32	$137,199,763.39
B2	92922FE20	$42,475,000.00	$42,472,098.96	3.4550000000%	3.4550000000%	$122,284.25	$6,457.70	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$128,741.95	$42,465,641.26
B3	92922FE38	$16,336,000.00	$16,334,884.25	3.5050000000%	3.5050000000%	$47,711.47	$2,483.65	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$50,195.12	$16,332,400.60
B4	92922FE46	$16,336,000.00	$16,334,884.25	3.7750000000%	3.7750000000%	$51,386.82	$2,483.65	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$53,870.47	$16,332,400.60
B5	92922FE53	$13,069,000.00	$13,068,107.39	3.8750000000%	3.8750000000%	$42,199.10	$1,986.95	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$44,186.05	$13,066,120.44
B6	92922FE61	$16,336,000.00	$16,334,884.25	3.9750000000%	3.9750000000%	$54,109.30	$2,483.65	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$56,592.95	$16,332,400.60
B7	92922FF29	$6,534,000.00	$6,533,553.73	4.0253821165%	4.0253821165%	$21,916.71	$993.40	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$22,910.11	$6,532,560.33
B8	92922FF37	$6,534,000.00	$6,533,553.73	4.0253821165%	4.0253821165%	$21,916.71	$993.40	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$22,910.11	$6,532,560.33
B9	92922FF45	$9,802,000.00	$9,801,330.53	4.0253821165%	4.0253821165%	$32,878.42	$1,490.25	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$34,368.67	$9,799,840.28
B10	92922FF52	$19,604,000.00	$19,602,661.05	4.0253821165%	4.0253821165%	$65,756.83	$2,980.50	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$68,737.33	$19,599,680.55
B11	92922FF60	$22,871,000.00	$22,869,437.91	4.0253821165%	4.0253821165%	$76,715.19	$3,477.20	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$80,192.39	$22,865,960.71
B12	92922FF78	$16,346,671.83	$16,345,555.34	4.0253821165%	4.0253821165%	$54,830.92	$2,485.26	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$57,316.19	$16,343,070.08
Y	92922FF86	$0.00	$0.00	0.0000000000%	0.0000000000%	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
R	92922FE79	$100.00	$0.00	0.0000000000%	0.0000000000%	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
R_SYN	XXXXXXXXX	$0.00	$0.00	0.0000000000%	0.0000000000%	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
YIELD_PAYMENTS	XXXXXXXXX	$0.00	$0.00	0.0000000000%	0.0000000000%	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
TFEE	XXXXXXXXX	$0.00	$0.00	0.0000000000%	0.0000000000%	$619.66	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$619.66	$0.00
Total		$3,267,405,771.83	$3,232,999,652.79			$10,845,120.58	$30,473,612.62	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$41,318,733.20	$3,202,526,040.17

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.05AR2
Distribution Date: 04/25/2005

Class	Orig Face	Beg Bal	Prin Loss	Prin Reimbursed	Subsequent Recoveries	Deferred Interest	Total Prin	End Cert Pct	End Cert Bal
1A1A	$412,241,000.00	$408,200,758.16	$0.00	$0.00	$0.00	$0.00	$4,083,681.00	0.9802932682	$404,117,077.16
1A1B	$45,805,000.00	$45,356,079.88	$0.00	$0.00	$0.00	$0.00	$453,746.74	0.9802932680	$44,902,333.14
2A1A	$609,705,000.00	$602,372,810.60	$0.00	$0.00	$0.00	$0.00	$6,349,219.83	0.9775606084	$596,023,590.77
2A1B	$406,478,000.00	$401,589,777.53	$0.00	$0.00	$0.00	$0.00	$4,232,896.53	0.9775606084	$397,356,881.00
2A2A1	$656,975,000.00	$649,074,351.11	$0.00	$0.00	$0.00	$0.00	$6,841,470.38	0.9775606084	$642,232,880.73
2A2A2	$391,500,000.00	$384,990,772.06	$0.00	$0.00	$0.00	$0.00	$5,636,586.41	0.9689762086	$379,354,185.65
2A2A3	$149,772,000.00	$149,772,000.00	$0.00	$0.00	$0.00	$0.00	$0.00	1.0000000000	$149,772,000.00
2A2B	$211,456,000.00	$208,913,072.78	$0.00	$0.00	$0.00	$0.00	$2,202,016.76	0.9775606084	$206,711,056.02
2A3	$60,000,000.00	$59,278,452.10	$0.00	$0.00	$0.00	$0.00	$624,815.59	0.9775606085	$58,653,636.51
X	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	0.0000000000	$0.00
X_NOTIONAL	$3,267,405,771.83	$3,232,999,652.80	$0.00	$0.00	$0.00	$0.00	$0.00	0.9801433504	$3,202,526,040.17
X_PO1	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	0.0000000000	$0.00
X_PO2	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	0.0000000000	$0.00
B1	$137,230,000.00	$137,220,627.18	$0.00	$0.00	$0.00	$0.00	$20,863.79	0.9997796647	$137,199,763.39
B2	$42,475,000.00	$42,472,098.96	$0.00	$0.00	$0.00	$0.00	$6,457.70	0.9997796647	$42,465,641.26
B3	$16,336,000.00	$16,334,884.25	$0.00	$0.00	$0.00	$0.00	$2,483.65	0.9997796645	$16,332,400.60
B4	$16,336,000.00	$16,334,884.25	$0.00	$0.00	$0.00	$0.00	$2,483.65	0.9997796645	$16,332,400.60
B5	$13,069,000.00	$13,068,107.39	$0.00	$0.00	$0.00	$0.00	$1,986.95	0.9997796649	$13,066,120.44
B6	$16,336,000.00	$16,334,884.25	$0.00	$0.00	$0.00	$0.00	$2,483.65	0.9997796645	$16,332,400.60
B7	$6,534,000.00	$6,533,553.73	$0.00	$0.00	$0.00	$0.00	$993.40	0.9997796648	$6,532,560.33
B8	$6,534,000.00	$6,533,553.73	$0.00	$0.00	$0.00	$0.00	$993.40	0.9997796648	$6,532,560.33
B9	$9,802,000.00	$9,801,330.53	$0.00	$0.00	$0.00	$0.00	$1,490.25	0.9997796654	$9,799,840.28
B10	$19,604,000.00	$19,602,661.05	$0.00	$0.00	$0.00	$0.00	$2,980.50	0.9997796649	$19,599,680.55
B11	$22,871,000.00	$22,869,437.91	$0.00	$0.00	$0.00	$0.00	$3,477.20	0.9997796646	$22,865,960.71
B12	$16,346,671.83	$16,345,555.34	$0.00	$0.00	$0.00	$0.00	$2,485.26	0.9997796646	$16,343,070.08
Y	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	0.0000000000	$0.00
R	$100.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	0.0000000000	$0.00
R_SYN	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	0.0000000000	$0.00
YIELD_PAYMENTS	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	0.0000000000	$0.00
TFEE	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	0.0000000000	$0.00
Total	$3,267,405,771.83	$3,232,999,652.79	$0.00	$0.00	$0.00	$0.00	$30,473,612.62	0.9801433504	$3,202,526,040.17

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.05AR2
Distribution Date: 04/25/2005
PER $1000 DENOMINATION
Class	Orig Face	Beg Bal	Prin Loss	Prin Reimbursed	Subsequent Recoveries	Deferred Interest	Total Prin	End Cert Pct	End Cert Bal
1A1A	$412,241,000.00	990.19932069	0.00000000	0.00000000	0.00000000	0.00000000	9.90605253	0.9802932682	980.29326816
1A1B	$45,805,000.00	990.19932060	0.00000000	0.00000000	0.00000000	0.00000000	9.90605261	0.9802932680	980.29326798
2A1A	$609,705,000.00	987.97420162	0.00000000	0.00000000	0.00000000	0.00000000	10.41359318	0.9775606084	977.56060844
2A1B	$406,478,000.00	987.97420163	0.00000000	0.00000000	0.00000000	0.00000000	10.41359318	0.9775606084	977.56060845
2A2A1	$656,975,000.00	987.97420162	0.00000000	0.00000000	0.00000000	0.00000000	10.41359318	0.9775606084	977.56060844
2A2A2	$391,500,000.00	983.37361957	0.00000000	0.00000000	0.00000000	0.00000000	14.39741101	0.9689762086	968.97620856
2A2A3	$149,772,000.00	1,000.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	1.0000000000	1,000.00000000
2A2B	$211,456,000.00	987.97420163	0.00000000	0.00000000	0.00000000	0.00000000	10.41359318	0.9775606084	977.56060845
2A3	$60,000,000.00	987.97420167	0.00000000	0.00000000	0.00000000	0.00000000	10.41359317	0.9775606085	977.56060850
X	$0.00	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.0000000000	0.00000000
X_NOTIONAL	$3,267,405,771.83	989.46989709	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.9801433504	980.14335035
X_PO1	$0.00	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.0000000000	0.00000000
X_PO2	$0.00	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.0000000000	0.00000000
B1	$137,230,000.00	999.93169992	0.00000000	0.00000000	0.00000000	0.00000000	0.15203520	0.9997796647	999.77966472
B2	$42,475,000.00	999.93170006	0.00000000	0.00000000	0.00000000	0.00000000	0.15203531	0.9997796647	999.77966474
B3	$16,336,000.00	999.93169993	0.00000000	0.00000000	0.00000000	0.00000000	0.15203538	0.9997796645	999.77966454
B4	$16,336,000.00	999.93169993	0.00000000	0.00000000	0.00000000	0.00000000	0.15203538	0.9997796645	999.77966454
B5	$13,069,000.00	999.93170021	0.00000000	0.00000000	0.00000000	0.00000000	0.15203535	0.9997796649	999.77966486
B6	$16,336,000.00	999.93169993	0.00000000	0.00000000	0.00000000	0.00000000	0.15203538	0.9997796645	999.77966454
B7	$6,534,000.00	999.93170034	0.00000000	0.00000000	0.00000000	0.00000000	0.15203551	0.9997796648	999.77966483
B8	$6,534,000.00	999.93170034	0.00000000	0.00000000	0.00000000	0.00000000	0.15203551	0.9997796648	999.77966483
B9	$9,802,000.00	999.93170067	0.00000000	0.00000000	0.00000000	0.00000000	0.15203530	0.9997796654	999.77966537
B10	$19,604,000.00	999.93170016	0.00000000	0.00000000	0.00000000	0.00000000	0.15203530	0.9997796649	999.77966486
B11	$22,871,000.00	999.93169997	0.00000000	0.00000000	0.00000000	0.00000000	0.15203533	0.9997796646	999.77966464
B12	$16,346,671.83	999.93169925	0.00000000	0.00000000	0.00000000	0.00000000	0.15203462	0.9997796646	999.77966463
Y	$0.00	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.0000000000	0.00000000
R	$100.00	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.0000000000	0.00000000
R_SYN	$0.00	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.0000000000	0.00000000
YIELD_PAYMENTS	$0.00	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.0000000000	0.00000000
TFEE	$0.00	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.0000000000	0.00000000

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.05AR2
Distribution Date: 04/25/2005

Class	Orig Face	Int Rate Accrued	Int Rate Paid	Beg Cert Prin/Not Bal	Current Int Accrued	Int Shortfall	PPIS	Uncompensated Int Shortfall	Unscheduled Int	Int Reimbursed	Total Int Dist
1A1A	$412,241,000.00	3.2050000000%	3.2050000000%	$408,200,758.16	$1,126,577.40	$0.00	$0.00	$0.00	$0.00	$0.00	$1,126,577.40
1A1B	$45,805,000.00	3.2650000000%	3.2650000000%	$45,356,079.88	$127,519.88	$0.00	$0.00	$0.00	$0.00	$0.00	$127,519.88
2A1A	$609,705,000.00	3.1850000000%	3.1850000000%	$602,372,810.60	$1,652,091.10	$0.00	$0.00	$0.00	$0.00	$0.00	$1,652,091.10
2A1B	$406,478,000.00	3.2450000000%	3.2450000000%	$401,589,777.53	$1,122,164.55	$0.00	$0.00	$0.00	$0.00	$0.00	$1,122,164.55
2A2A1	$656,975,000.00	3.2050000000%	3.2050000000%	$649,074,351.11	$1,791,355.06	$0.00	$0.00	$0.00	$0.00	$0.00	$1,791,355.06
2A2A2	$391,500,000.00	3.0950000000%	3.0950000000%	$384,990,772.06	$1,026,053.88	$0.00	$0.00	$0.00	$0.00	$0.00	$1,026,053.88
2A2A3	$149,772,000.00	3.2550000000%	3.2550000000%	$149,772,000.00	$419,798.44	$0.00	$0.00	$0.00	$0.00	$0.00	$419,798.44
2A2B	$211,456,000.00	3.2550000000%	3.2550000000%	$208,913,072.78	$585,565.93	$0.00	$0.00	$0.00	$0.00	$0.00	$585,565.93
2A3	$60,000,000.00	3.2250000000%	3.2250000000%	$59,278,452.10	$164,621.20	$0.00	$0.00	$0.00	$0.00	$0.00	$164,621.20
X	$0.00	0.0000000000%	0.0000000000%	$0.00	$1,848,303.89	$0.00	$0.00	$0.00	$0.00	$0.00	$1,848,303.89
X_NOTIONAL	$3,267,405,771.83	0.6860392531%	0.6860392531%	$3,232,999,652.80	$1,848,303.89	$0.00	$0.00	$0.00	$0.00	$0.00	$1,848,303.89
X_PO1	$0.00	0.0000000000%	0.0000000000%	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
X_PO2	$0.00	0.0000000000%	0.0000000000%	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
B1	$137,230,000.00	3.4050000000%	3.4050000000%	$137,220,627.18	$389,363.53	$0.00	$0.00	$0.00	$0.00	$0.00	$389,363.53
B2	$42,475,000.00	3.4550000000%	3.4550000000%	$42,472,098.96	$122,284.25	$0.00	$0.00	$0.00	$0.00	$0.00	$122,284.25
B3	$16,336,000.00	3.5050000000%	3.5050000000%	$16,334,884.25	$47,711.47	$0.00	$0.00	$0.00	$0.00	$0.00	$47,711.47
B4	$16,336,000.00	3.7750000000%	3.7750000000%	$16,334,884.25	$51,386.82	$0.00	$0.00	$0.00	$0.00	$0.00	$51,386.82
B5	$13,069,000.00	3.8750000000%	3.8750000000%	$13,068,107.39	$42,199.10	$0.00	$0.00	$0.00	$0.00	$0.00	$42,199.10
B6	$16,336,000.00	3.9750000000%	3.9750000000%	$16,334,884.25	$54,109.30	$0.00	$0.00	$0.00	$0.00	$0.00	$54,109.30
B7	$6,534,000.00	4.0253821165%	4.0253821165%	$6,533,553.73	$21,916.71	$0.00	$0.00	$0.00	$0.00	$0.00	$21,916.71
B8	$6,534,000.00	4.0253821165%	4.0253821165%	$6,533,553.73	$21,916.71	$0.00	$0.00	$0.00	$0.00	$0.00	$21,916.71
B9	$9,802,000.00	4.0253821165%	4.0253821165%	$9,801,330.53	$32,878.42	$0.00	$0.00	$0.00	$0.00	$0.00	$32,878.42
B10	$19,604,000.00	4.0253821165%	4.0253821165%	$19,602,661.05	$65,756.83	$0.00	$0.00	$0.00	$0.00	$0.00	$65,756.83
B11	$22,871,000.00	4.0253821165%	4.0253821165%	$22,869,437.91	$76,715.19	$0.00	$0.00	$0.00	$0.00	$0.00	$76,715.19
B12	$16,346,671.83	4.0253821165%	4.0253821165%	$16,345,555.34	$54,830.92	$0.00	$0.00	$0.00	$0.00	$0.00	$54,830.92
Y	$0.00	0.0000000000%	0.0000000000%	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
R	$100.00	0.0000000000%	0.0000000000%	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
R_SYN	$0.00	0.0000000000%	0.0000000000%	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
YIELD_PAYMENTS	$0.00	0.0000000000%	0.0000000000%	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
TFEE	$0.00	0.0000000000%	0.0000000000%	$0.00	$619.66	$0.00	$0.00	$0.00	$0.00	$0.00	$619.66
Total	$3,267,405,771.83			$3,232,999,652.79	$10,845,120.58	$0.00	$0.00	$0.00	$0.00	$0.00	$10,845,120.58

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.05AR2
Distribution Date: 04/25/2005
PER $1000 DENOMINATION
Class	Orig Face	Int Rate Accrued	Int Rate Paid	Beg Cert Prin/Not Bal	Curent Int Accrued	Int Shortfall	PPIS	Uncompensated Int Shortfall	Unscheduled Int	Int Reimbursed	Total Int Dist
1A1A	$412,241,000.00	3.2050000000%	3.2050000000%	990.19932069	2.73281260	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	2.73281260
1A1B	$45,805,000.00	3.2650000000%	3.2650000000%	990.19932060	2.78397293	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	2.78397293
2A1A	$609,705,000.00	3.1850000000%	3.1850000000%	987.97420162	2.70965647	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	2.70965647
2A1B	$406,478,000.00	3.2450000000%	3.2450000000%	987.97420163	2.76070181	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	2.76070181
2A2A1	$656,975,000.00	3.2050000000%	3.2050000000%	987.97420162	2.72667158	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	2.72667158
2A2A2	$391,500,000.00	3.0950000000%	3.0950000000%	983.37361957	2.62082728	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	2.62082728
2A2A3	$149,772,000.00	3.2550000000%	3.2550000000%	1,000.00000000	2.80291670	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	2.80291670
2A2B	$211,456,000.00	3.2550000000%	3.2550000000%	987.97420163	2.76920934	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	2.76920934
2A3	$60,000,000.00	3.2250000000%	3.2250000000%	987.97420167	2.74368667	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	2.74368667
X	$0.00	0.0000000000%	0.0000000000%	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000
X_NOTIONAL	$3,267,405,771.83	0.6860392531%	0.6860392531%	989.46989709	0.56567932	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.56567932
X_PO1	$0.00	0.0000000000%	0.0000000000%	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000
X_PO2	$0.00	0.0000000000%	0.0000000000%	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000
B1	$137,230,000.00	3.4050000000%	3.4050000000%	999.93169992	2.83730620	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	2.83730620
B2	$42,475,000.00	3.4550000000%	3.4550000000%	999.93170006	2.87896998	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	2.87896998
B3	$16,336,000.00	3.5050000000%	3.5050000000%	999.93169993	2.92063357	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	2.92063357
B4	$16,336,000.00	3.7750000000%	3.7750000000%	999.93169993	3.14561827	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	3.14561827
B5	$13,069,000.00	3.8750000000%	3.8750000000%	999.93170021	3.22894636	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	3.22894636
B6	$16,336,000.00	3.9750000000%	3.9750000000%	999.93169993	3.31227351	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	3.31227351
B7	$6,534,000.00	4.0253821165%	4.0253821165%	999.93170034	3.35425620	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	3.35425620
B8	$6,534,000.00	4.0253821165%	4.0253821165%	999.93170034	3.35425620	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	3.35425620
B9	$9,802,000.00	4.0253821165%	4.0253821165%	999.93170067	3.35425627	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	3.35425627
B10	$19,604,000.00	4.0253821165%	4.0253821165%	999.93170016	3.35425576	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	3.35425576
B11	$22,871,000.00	4.0253821165%	4.0253821165%	999.93169997	3.35425604	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	3.35425604
B12	$16,346,671.83	4.0253821165%	4.0253821165%	999.93169925	3.35425587	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	3.35425587
Y	$0.00	0.0000000000%	0.0000000000%	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000
R	$100.00	0.0000000000%	0.0000000000%	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000
R_SYN	$0.00	0.0000000000%	0.0000000000%	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000
YIELD_PAYMENTS	$0.00	0.0000000000%	0.0000000000%	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000
TFEE	$0.00	0.0000000000%	0.0000000000%	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
04/2005 DISTRIBUTION REPORT
SERIES: WAMU 05AR2
WEIGHTED AVERAGE PC RATE: 4.10675%
WEIGHTED AVERAGE MATURITY: 357.98515
WEIGHTED AVERAGE LOAN AGE: 4.99216
POOL NUMBER: 2642
ISSUE DATE: 01/26/2005
CERTIFICATE BALANCE AT ISSUE: $508,375,476.65
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
BALANCES FROM LAST FISCAL MONTH-END:	2296		$503,879,424.67
PRINCIPAL POOL COLLECTION(S):
Scheduled Principal Collection Due Current Month		($205,395.56)
Unscheduled Principal Collection/Reversals		$266,253.73
Liquidations-in-full	20	$4,479,061.16
Subsequent Recoveries		$0.00
Net principal Distributed		$4,539,919.33	-$4,539,919.33

CAPITAL LOSS (PRINCIPAL WRITTEN OFF):			$0.00

BALANCE CURRENT FISCAL MONTH-END:	2276		$499,339,505.34

SCHEDULED INTEREST AT MORTGAGE RATE:		$1,902,879.33

UNSCHEDULED INTEREST AT MORTGAGE RATE:
Unscheduled Interest Collection/Reversals		$0.00
Interest Uncollected on Liquidation		$0.00
Interest Uncollected on Non-Earning Assets		$0.00
Interest Uncollected on Prepayment		$0.00
Uncompensated Uncollected Interest		$0.00
Net Unscheduled Interest Distributed		$0.00

OTHER:
Loan Conversion Fees		$0.00
Expense Reimbursements		$0.00
Gain on Liquidations		$0.00
Hazard Insurance Premium Refunds		$0.00
Recoveries Carried Forward		$0.00
Net Other Distributions		$0.00

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
04/2005 DISTRIBUTION REPORT
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
SCHEDULED SERVICING FEE EXPENSES:		$178,456.94

UNSCHEDULED SERVICING FEES:
Unscheduled Service Fee Collections/Reversals		$0.00
Servicing Fees Uncollected on Liquidation		$0.00
Servicing Fees Uncollected/Non-Earning Assets		$0.00
Net Unscheduled Service Fees Distributed		$0.00

MISCELLANEOUS EXPENSES:		$0.00

NET FUNDS DISTRIBUTED:		$6,264,341.72

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
04/2005 DISTRIBUTION REPORT
SERIES: WAMU 05AR2
WEIGHTED AVERAGE PC RATE: 4.01039%
WEIGHTED AVERAGE MATURITY: 359.71067
WEIGHTED AVERAGE LOAN AGE: 5.06065
POOL NUMBER: 2643
ISSUE DATE: 01/26/2005
CERTIFICATE BALANCE AT ISSUE: $2,759,030,295.18
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
BALANCES FROM LAST FISCAL MONTH-END:	3761		$2,729,120,228.13
PRINCIPAL POOL COLLECTION(S):
Scheduled Principal Collection Due Current Month		($678,572.93)
Unscheduled Principal Collection/Reversals		$2,594,075.98
Liquidations-in-full	36	$24,018,190.25
Subsequent Recoveries		$0.00
Net principal Distributed		$25,933,693.30	-$25,933,693.30

CAPITAL LOSS (PRINCIPAL WRITTEN OFF):			$0.00

BALANCE CURRENT FISCAL MONTH-END:	3725		$2,703,186,534.83

SCHEDULED INTEREST AT MORTGAGE RATE:		$10,087,261.25

UNSCHEDULED INTEREST AT MORTGAGE RATE:
Unscheduled Interest Collection/Reversals		$0.00
Interest Uncollected on Liquidation		$0.00
Interest Uncollected on Non-Earning Assets		$0.00
Interest Uncollected on Prepayment		$0.00
Uncompensated Uncollected Interest		$0.00
Net Unscheduled Interest Distributed		$0.00

OTHER:
Loan Conversion Fees		$0.00
Expense Reimbursements		$0.00
Gain on Liquidations		$0.00
Hazard Insurance Premium Refunds		$0.00
Recoveries Carried Forward		$0.00
Net Other Distributions		$0.00

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
04/2005 DISTRIBUTION REPORT
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
SCHEDULED SERVICING FEE EXPENSES:		$966,563.07

UNSCHEDULED SERVICING FEES:
Unscheduled Service Fee Collections/Reversals		$0.00
Servicing Fees Uncollected on Liquidation		$0.00
Servicing Fees Uncollected/Non-Earning Assets		$0.00
Net Unscheduled Service Fees Distributed		$0.00

MISCELLANEOUS EXPENSES:		$0.00

NET FUNDS DISTRIBUTED:		$35,054,391.48

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
04/2005 DISTRIBUTION REPORT
SERIES: WAMU 05AR2
WEIGHTED AVERAGE PC RATE: 4.02541%
WEIGHTED AVERAGE MATURITY: 359.44163
WEIGHTED AVERAGE LOAN AGE: 5.04997
POOL NUMBER: ALL
ISSUE DATE: 01/26/2005
CERTIFICATE BALANCE AT ISSUE: $3,267,405,771.83
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
BALANCES FROM LAST FISCAL MONTH-END:	6057		$3,232,999,652.80
PRINCIPAL POOL COLLECTION(S):
Scheduled Principal Collection Due Current Month		($883,968.49)
Unscheduled Principal Collection/Reversals		$2,860,329.71
Liquidations-in-full	56	$28,497,251.41
Subsequent Recoveries		$0.00
Net principal Distributed		$30,473,612.63	-$30,473,612.63

CAPITAL LOSS (PRINCIPAL WRITTEN OFF):			$0.00

BALANCE CURRENT FISCAL MONTH-END:	6001		$3,202,526,040.17

SCHEDULED INTEREST AT MORTGAGE RATE:		$11,990,140.58

UNSCHEDULED INTEREST AT MORTGAGE RATE:
Unscheduled Interest Collection/Reversals		$0.00
Interest Uncollected on Liquidation		$0.00
Interest Uncollected on Non-Earning Assets		$0.00
Interest Uncollected on Prepayment		$0.00
Uncompensated Uncollected Interest		$0.00
Net Unscheduled Interest Distributed		$0.00

OTHER:
Loan Conversion Fees		$0.00
Expense Reimbursements		$0.00
Gain on Liquidations		$0.00
Hazard Insurance Premium Refunds		$0.00
Recoveries Carried Forward		$0.00
Net Other Distributions		$0.00

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
04/2005 DISTRIBUTION REPORT
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
SCHEDULED SERVICING FEE EXPENSES:		$1,145,020.01

UNSCHEDULED SERVICING FEES:
Unscheduled Service Fee Collections/Reversals		$0.00
Servicing Fees Uncollected on Liquidation		$0.00
Servicing Fees Uncollected/Non-Earning Assets		$0.00
Net Unscheduled Service Fees Distributed		$0.00

MISCELLANEOUS EXPENSES:		$0.00

NET FUNDS DISTRIBUTED:		$41,318,733.20

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.05AR2
Distribution Date: 04/25/2005

Distribution by Group
Pool ID		Principal		Interest		Total
Pool - 2642		$4,539,919.33		$1,724,422.39		$6,264,341.72
Pool - 2643		$25,933,693.30		$9,120,698.18		$35,054,391.48
Aggregate		$30,473,612.63		$10,845,120.57		$41,318,733.20

Number of Loans and Aggregate Principal Balance By Group
Pool ID	Beg Bal	Beg Count	Paid Off / Liq Count	Rem Count	Sched Prin End Bal	Sched Prin	Prin PrePay / Liq	Unsched Prin / Rev	Total Prin
Pool - 2642	$503,879,424.67	2296	20	2276	$499,339,505.34	($205,395.56)	$4,479,061.16	$266,253.73	$4,539,919.33
Pool - 2643	$2,729,120,228.13	3761	36	3725	$2,703,186,534.83	($678,572.93)	$24,018,190.25	$2,594,075.98	$25,933,693.30
Aggregate	$3,232,999,652.80	6057	56	6001	$3,202,526,040.17	($883,968.49)	$28,497,251.41	$2,860,329.71	$30,473,612.63

Delinquency Information by Group
Pool ID	1 Month Count	Sched End Balance	2 Months Count	Sched End Balance	3 Months Count	Sched End Balance	4 Months Count	Sched End Balance
Pool - 2642	22	$5,497,978.90	4	$573,458.87	0	$0.00	0	$0.00
Pool - 2643	29	$20,800,019.80	1	$1,101,124.16	0	$0.00	0	$0.00
Aggregate	51	$26,297,998.70	5	$1,674,583.03	0	$0.00	0	$0.00

Foreclosure and REO Information by Group
Pool ID		Foreclosure Count		Sched End Balance		REO Count		Sched End Balance
Pool - 2642		0		$0.00		0		$0.00
Pool - 2643		0		$0.00		0		$0.00
Aggregate		0		$0.00		0		$0.00

Aggregate Loss Amounts by Group
Pool ID			Count			Loss Amount
Pool - 2642			0			$0.00
Pool - 2643			0			$0.00
Aggregate			0			$0.00

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.05AR2
Distribution Date: 04/25/2005

INSURANCE RESERVES - Group 1
Insurance Type	Original Balance	Claims In Progress	Claims Paid	Coverage Adjustments	Coverage Remaining
MPI	$0.00	$0.00	$0.00	$0.00	$0.00
Special Hazard	$0.00	$0.00	$0.00	$0.00	$0.00
Bankruptcy Bond
Single-Units	$0.00	$0.00	$0.00	$0.00	$0.00
Multi-Units	$0.00	$0.00	$0.00	$0.00	$0.00
Mortgage Repurchase	$0.00	$0.00	$0.00	$0.00	$0.00

INSURANCE RESERVES - Group 2
Insurance Type	Original Balance	Claims In Progress	Claims Paid	Coverage Adjustments	Coverage Remaining
MPI	$0.00	$0.00	$0.00	$0.00	$0.00
Special Hazard	$0.00	$0.00	$0.00	$0.00	$0.00
Bankruptcy Bond
Single-Units	$0.00	$0.00	$0.00	$0.00	$0.00
Multi-Units	$0.00	$0.00	$0.00	$0.00	$0.00
Mortgage Repurchase	$0.00	$0.00	$0.00	$0.00	$0.00

INSURANCE RESERVES - Aggregate
Insurance Type	Original Balance	Claims In Progress	Claims Paid	Coverage Adjustments	Coverage Remaining
MPI	$0.00	$0.00	$0.00	$0.00	$0.00
Special Hazard	$0.00	$0.00	$0.00	$0.00	$0.00
Bankruptcy Bond
Single-Units	$0.00	$0.00	$0.00	$0.00	$0.00
Multi-Units	$0.00	$0.00	$0.00	$0.00	$0.00
Mortgage Repurchase	$0.00	$0.00	$0.00	$0.00	$0.00

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.05AR2
Distribution Date: 04/25/2005

The Subordinate Certificates provide, to the limited extent described in the Prospectus Supplement, credit support, as well as special hazard, bankruptcy, and fraud coverage to certain Certificates. The "Prospectus Supplement" is that certain Prospectus Supplement, dated January 21,2005 to that certain Prospectus Supplement,dated February 10,2004, to which certain certificates were offered. The special hazard, bankruptcy, and Fraud coverage (collectively, "Credit Enhancements") provided by the Subordinate certificates provide coverage to the Loans, subject to the conditions and limitations to payment specified thereunder.



The Class Principal Balances of each Class of the Class B1,B2,B3,B4,B5,B6,B7,B8,B9,B10,B11,B12 Certificatesimmediately after the principal and interest distribution on 200504 are as follows:

Class			Class Principal Balance
B1			$137,199,763.39
B2			$42,465,641.26
B3			$16,332,400.60
B4			$16,332,400.60
B5			$13,066,120.44
B6			$16,332,400.60
B7			$6,532,560.33
B8			$6,532,560.33
B9			$9,799,840.28
B10			$19,599,680.55
B11			$22,865,960.71
B12			$16,343,070.08
Total			$323,402,399.18
Capitalized items used but not defined herein have the meanings ascribed to them in the Prospectus Supplement.
The amount of the special hazard coverage, bankruptcy coverage, and fraud coverage, as of the above referenced distribution date, is $0.00, $0.00, $0.00 respectively, and such coverages are referred to in the table above under the column "Insurance Type" as "special hazard," "bankruptcy bond," and "mortgage repurchase," respectively. However, no policy of insurance exists for any such coverage, notwithstanding the reference to "insurance."



The Subordinate Certificates provide, to the limited extent described in the Prospectus Supplement, credit support, as well as special hazard, bankruptcy, and fraud coverage to certain Certificates. The "Prospectus Supplement" is that certain Prospectus Supplement, dated January 21,2005 to that certain Prospectus Supplement,dated February 10,2004, to which certain certificates were offered. The special hazard, bankruptcy, and Fraud coverage (collectively, "Credit Enhancements") provided by the Subordinate certificates provide coverage to the Loans, subject to the conditions and limitations to payment specified thereunder.



The Class Principal Balances of each Class of the Class B1,B2,B3,B4,B5,B6,B7,B8,B9,B10,B11,B12 Certificatesimmediately after the principal and interest distribution on 200504 are as follows:

Class			Class Principal Balance
B1			$137,199,763.39
B2			$42,465,641.26
B3			$16,332,400.60
B4			$16,332,400.60
B5			$13,066,120.44
B6			$16,332,400.60
B7			$6,532,560.33
B8			$6,532,560.33
B9			$9,799,840.28
B10			$19,599,680.55
B11			$22,865,960.71
B12			$16,343,070.08
Total			$323,402,399.18
Capitalized items used but not defined herein have the meanings ascribed to them in the Prospectus Supplement.
The amount of the special hazard coverage, bankruptcy coverage, and fraud coverage, as of the above referenced distribution date, is $0.00, $0.00, $0.00 respectively, and such coverages are referred to in the table above under the column "Insurance Type" as "special hazard," "bankruptcy bond," and "mortgage repurchase," respectively. However, no policy of insurance exists for any such coverage, notwithstanding the reference to "insurance."

WaMu Mortgage Pass-Through Certificates, Series 2005-AR2 8-K