WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.05AR6
Distribution Date: 06/27/2005

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	92922FH84	$195,982,000.00	$194,417,541.00	3.3750000000%	3.3750000000%	$565,025.98	$2,432,752.58	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$2,997,778.55	$191,984,788.42
1A1B	92922FH92	$21,776,000.00	$21,602,169.45	3.4650000000%	3.4650000000%	$64,455.47	$270,308.60	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$334,764.07	$21,331,860.85
2A1A	92922FJ25	$1,589,126,000.00	$1,577,251,721.39	3.3550000000%	3.3550000000%	$4,556,724.04	$15,367,753.68	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$19,924,477.71	$1,561,883,967.71
2A1B1	92922FJ33	$300,351,000.00	$297,222,349.52	3.3150000000%	3.3150000000%	$848,445.97	$4,049,115.87	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$4,897,561.83	$293,173,233.65
2A1B2	92922FJ41	$118,354,000.00	$118,354,000.00	3.4950000000%	3.4950000000%	$356,196.23	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$356,196.23	$118,354,000.00
2A1B3	92922FL48	$243,430,000.00	$241,611,040.62	3.3950000000%	3.3950000000%	$706,343.17	$2,354,106.77	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$3,060,449.94	$239,256,933.85
2A1C	92922FJ58	$397,282,000.00	$394,313,426.61	3.4650000000%	3.4650000000%	$1,176,532.69	$3,841,943.25	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$5,018,475.94	$390,471,483.36
X	92922FJ66	$0.00	$0.00	0.0000000000%	0.0000000000%	$2,133,701.94	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$2,133,701.94	$0.00
X_NOTIONAL	XXXXXXXXX	$3,167,184,178.00	$3,145,651,750.43	0.8139624266%	0.8139624266%	$2,133,701.94	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$2,133,701.94	$3,117,332,612.85
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	92922FJ74	$120,354,000.00	$120,352,569.40	3.7250000000%	3.7250000000%	$373,594.43	$1,262.74	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$374,857.18	$120,351,306.66
B2	92922FJ82	$41,173,000.00	$41,172,510.59	3.7550000000%	3.7550000000%	$128,835.65	$431.98	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$129,267.63	$41,172,078.61
B3	92922FJ90	$12,669,000.00	$12,668,849.41	3.7850000000%	3.7850000000%	$39,959.66	$132.92	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$40,092.58	$12,668,716.49
B4	92922FK23	$19,003,000.00	$19,002,774.12	3.9250000000%	3.9250000000%	$62,154.91	$199.38	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$62,354.28	$19,002,574.74
B5	92922FK31	$12,669,000.00	$12,668,849.41	4.0250000000%	4.0250000000%	$42,493.43	$132.92	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$42,626.35	$12,668,716.49
B6	92922FK49	$9,502,000.00	$9,501,887.05	4.1750000000%	4.1750000000%	$33,058.65	$99.69	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$33,158.34	$9,501,787.36
B7	92922FK56	$9,502,000.00	$9,501,887.05	4.3250000000%	4.3250000000%	$34,246.38	$99.69	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$34,346.08	$9,501,787.36
B8	92922FK64	$6,334,000.00	$6,333,924.71	4.3250000000%	4.3250000000%	$22,828.52	$66.46	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$22,894.98	$6,333,858.25
B9	92922FK72	$11,085,000.00	$11,084,868.24	4.3250000000%	4.3250000000%	$39,951.71	$116.30	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$40,068.02	$11,084,751.94
B10	92922FK98	$19,003,000.00	$19,002,774.12	4.3250000000%	4.3250000000%	$68,489.17	$199.38	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$68,688.54	$19,002,574.74
B11	92922FL22	$23,754,000.00	$23,753,717.65	4.3250000000%	4.3250000000%	$85,612.36	$249.22	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$85,861.58	$23,753,468.43
B12	92922FL30	$15,835,078.32	$15,834,890.10	4.3250000000%	4.3250000000%	$57,071.58	$166.14	$0.00	$0.00	$0.00	$0.01	$0.00	$0.00	$0.00	$0.00	$0.00	$57,237.72	$15,834,723.95
R	92922FK80	$100.00	$0.00	0.0000000000%	0.0000000000%	$0.09	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.09	$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%	$629.13	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$629.13	$0.00
Total		$3,167,184,178.32	$3,145,651,750.44			$11,395,722.02	$28,319,137.58	$0.00	$0.00	$0.00	$0.01	$0.00	$0.00	$0.00	$0.00	$0.00	$39,714,859.60	$3,117,332,612.85

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.05AR6
Distribution Date: 06/27/2005

Class	Orig Face	Beg Bal	Prin Loss	Prin Reimbursed	Subsequent Recoveries	Deferred Interest	Total Prin	End Cert Pct	End Cert Bal
1A1A	$195,982,000.00	$194,417,541.00	$0.00	$0.00	$0.00	$0.00	$2,432,752.58	0.9796041903	$191,984,788.42
1A1B	$21,776,000.00	$21,602,169.45	$0.00	$0.00	$0.00	$0.00	$270,308.60	0.9796041904	$21,331,860.85
2A1A	$1,589,126,000.00	$1,577,251,721.39	$0.00	$0.00	$0.00	$0.00	$15,367,753.68	0.9828572232	$1,561,883,967.71
2A1B1	$300,351,000.00	$297,222,349.52	$0.00	$0.00	$0.00	$0.00	$4,049,115.87	0.9761020727	$293,173,233.65
2A1B2	$118,354,000.00	$118,354,000.00	$0.00	$0.00	$0.00	$0.00	$0.00	1.0000000000	$118,354,000.00
2A1B3	$243,430,000.00	$241,611,040.62	$0.00	$0.00	$0.00	$0.00	$2,354,106.77	0.9828572232	$239,256,933.85
2A1C	$397,282,000.00	$394,313,426.61	$0.00	$0.00	$0.00	$0.00	$3,841,943.25	0.9828572232	$390,471,483.36
X	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	0.0000000000	$0.00
X_NOTIONAL	$3,167,184,178.00	$3,145,651,750.43	$0.00	$0.00	$0.00	$0.00	$0.00	0.9842599728	$3,117,332,612.85
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	$120,354,000.00	$120,352,569.40	$0.00	$0.00	$0.00	$0.00	$1,262.74	0.9999776215	$120,351,306.66
B2	$41,173,000.00	$41,172,510.59	$0.00	$0.00	$0.00	$0.00	$431.98	0.9999776215	$41,172,078.61
B3	$12,669,000.00	$12,668,849.41	$0.00	$0.00	$0.00	$0.00	$132.92	0.9999776218	$12,668,716.49
B4	$19,003,000.00	$19,002,774.12	$0.00	$0.00	$0.00	$0.00	$199.38	0.9999776214	$19,002,574.74
B5	$12,669,000.00	$12,668,849.41	$0.00	$0.00	$0.00	$0.00	$132.92	0.9999776218	$12,668,716.49
B6	$9,502,000.00	$9,501,887.05	$0.00	$0.00	$0.00	$0.00	$99.69	0.9999776216	$9,501,787.36
B7	$9,502,000.00	$9,501,887.05	$0.00	$0.00	$0.00	$0.00	$99.69	0.9999776216	$9,501,787.36
B8	$6,334,000.00	$6,333,924.71	$0.00	$0.00	$0.00	$0.00	$66.46	0.9999776208	$6,333,858.25
B9	$11,085,000.00	$11,084,868.24	$0.00	$0.00	$0.00	$0.00	$116.30	0.9999776220	$11,084,751.94
B10	$19,003,000.00	$19,002,774.12	$0.00	$0.00	$0.00	$0.00	$199.38	0.9999776214	$19,002,574.74
B11	$23,754,000.00	$23,753,717.65	$0.00	$0.00	$0.00	$0.00	$249.22	0.9999776219	$23,753,468.43
B12	$15,835,078.32	$15,834,890.10	$0.01	$0.00	$0.00	$0.00	$166.14	0.9999776212	$15,834,723.95
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	$3,167,184,178.32	$3,145,651,750.44	$0.01	$0.00	$0.00	$0.00	$28,319,137.58	0.9842599727	$3,117,332,612.85

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.05AR6
Distribution Date: 06/27/2005
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	$195,982,000.00	992.01733322	0.00000000	0.00000000	0.00000000	0.00000000	12.41314294	0.9796041903	979.60419028
1A1B	$21,776,000.00	992.01733330	0.00000000	0.00000000	0.00000000	0.00000000	12.41314291	0.9796041904	979.60419039
2A1A	$1,589,126,000.00	992.52779288	0.00000000	0.00000000	0.00000000	0.00000000	9.67056966	0.9828572232	982.85722322
2A1B1	$300,351,000.00	989.58335254	0.00000000	0.00000000	0.00000000	0.00000000	13.48127980	0.9761020727	976.10207274
2A1B2	$118,354,000.00	1,000.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	1.0000000000	1,000.00000000
2A1B3	$243,430,000.00	992.52779288	0.00000000	0.00000000	0.00000000	0.00000000	9.67056965	0.9828572232	982.85722323
2A1C	$397,282,000.00	992.52779288	0.00000000	0.00000000	0.00000000	0.00000000	9.67056965	0.9828572232	982.85722323
X	$0.00	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.0000000000	0.00000000
X_NOTIONAL	$3,167,184,178.00	993.20139709	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.9842599728	984.25997279
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	$120,354,000.00	999.98811340	0.00000000	0.00000000	0.00000000	0.00000000	0.01049188	0.9999776215	999.97762152
B2	$41,173,000.00	999.98811333	0.00000000	0.00000000	0.00000000	0.00000000	0.01049183	0.9999776215	999.97762150
B3	$12,669,000.00	999.98811351	0.00000000	0.00000000	0.00000000	0.00000000	0.01049175	0.9999776218	999.97762175
B4	$19,003,000.00	999.98811346	0.00000000	0.00000000	0.00000000	0.00000000	0.01049203	0.9999776214	999.97762143
B5	$12,669,000.00	999.98811351	0.00000000	0.00000000	0.00000000	0.00000000	0.01049175	0.9999776218	999.97762175
B6	$9,502,000.00	999.98811303	0.00000000	0.00000000	0.00000000	0.00000000	0.01049148	0.9999776216	999.97762155
B7	$9,502,000.00	999.98811303	0.00000000	0.00000000	0.00000000	0.00000000	0.01049148	0.9999776216	999.97762155
B8	$6,334,000.00	999.98811336	0.00000000	0.00000000	0.00000000	0.00000000	0.01049258	0.9999776208	999.97762078
B9	$11,085,000.00	999.98811367	0.00000000	0.00000000	0.00000000	0.00000000	0.01049166	0.9999776220	999.97762201
B10	$19,003,000.00	999.98811346	0.00000000	0.00000000	0.00000000	0.00000000	0.01049203	0.9999776214	999.97762143
B11	$23,754,000.00	999.98811358	0.00000000	0.00000000	0.00000000	0.00000000	0.01049171	0.9999776219	999.97762187
B12	$15,835,078.32	999.98811373	0.00000063	0.00000000	0.00000000	0.00000000	0.01049190	0.9999776212	999.97762120
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.05AR6
Distribution Date: 06/27/2005

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	$195,982,000.00	3.3750000000%	3.3750000000%	$194,417,541.00	$565,025.98	$0.00	$0.00	$0.00	$0.00	$0.00	$565,025.98
1A1B	$21,776,000.00	3.4650000000%	3.4650000000%	$21,602,169.45	$64,455.47	$0.00	$0.00	$0.00	$0.00	$0.00	$64,455.47
2A1A	$1,589,126,000.00	3.3550000000%	3.3550000000%	$1,577,251,721.39	$4,556,724.04	$0.00	$0.00	$0.00	$0.00	$0.00	$4,556,724.04
2A1B1	$300,351,000.00	3.3150000000%	3.3150000000%	$297,222,349.52	$848,445.97	$0.00	$0.00	$0.00	$0.00	$0.00	$848,445.97
2A1B2	$118,354,000.00	3.4950000000%	3.4950000000%	$118,354,000.00	$356,196.23	$0.00	$0.00	$0.00	$0.00	$0.00	$356,196.23
2A1B3	$243,430,000.00	3.3950000000%	3.3950000000%	$241,611,040.62	$706,343.17	$0.00	$0.00	$0.00	$0.00	$0.00	$706,343.17
2A1C	$397,282,000.00	3.4650000000%	3.4650000000%	$394,313,426.61	$1,176,532.69	$0.00	$0.00	$0.00	$0.00	$0.00	$1,176,532.69
X	$0.00	0.0000000000%	0.0000000000%	$0.00	$2,133,701.94	$0.00	$0.00	$0.00	$0.00	$0.00	$2,133,701.94
X_NOTIONAL	$3,167,184,178.00	0.8139624266%	0.8139624266%	$3,145,651,750.43	$2,133,701.94	$0.00	$0.00	$0.00	$0.00	$0.00	$2,133,701.94
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	$120,354,000.00	3.7250000000%	3.7250000000%	$120,352,569.40	$373,594.43	$0.00	$0.00	$0.00	$0.00	$0.00	$373,594.43
B2	$41,173,000.00	3.7550000000%	3.7550000000%	$41,172,510.59	$128,835.65	$0.00	$0.00	$0.00	$0.00	$0.00	$128,835.65
B3	$12,669,000.00	3.7850000000%	3.7850000000%	$12,668,849.41	$39,959.66	$0.00	$0.00	$0.00	$0.00	$0.00	$39,959.66
B4	$19,003,000.00	3.9250000000%	3.9250000000%	$19,002,774.12	$62,154.91	$0.00	$0.00	$0.00	$0.00	$0.00	$62,154.91
B5	$12,669,000.00	4.0250000000%	4.0250000000%	$12,668,849.41	$42,493.43	$0.00	$0.00	$0.00	$0.00	$0.00	$42,493.43
B6	$9,502,000.00	4.1750000000%	4.1750000000%	$9,501,887.05	$33,058.65	$0.00	$0.00	$0.00	$0.00	$0.00	$33,058.65
B7	$9,502,000.00	4.3250000000%	4.3250000000%	$9,501,887.05	$34,246.38	$0.00	$0.00	$0.00	$0.00	$0.00	$34,246.38
B8	$6,334,000.00	4.3250000000%	4.3250000000%	$6,333,924.71	$22,828.52	$0.00	$0.00	$0.00	$0.00	$0.00	$22,828.52
B9	$11,085,000.00	4.3250000000%	4.3250000000%	$11,084,868.24	$39,951.71	$0.00	$0.00	$0.00	$0.00	$0.00	$39,951.71
B10	$19,003,000.00	4.3250000000%	4.3250000000%	$19,002,774.12	$68,489.17	$0.00	$0.00	$0.00	$0.00	$0.00	$68,489.17
B11	$23,754,000.00	4.3250000000%	4.3250000000%	$23,753,717.65	$85,612.36	$0.00	$0.00	$0.00	$0.00	$0.00	$85,612.36
B12	$15,835,078.32	4.3250000000%	4.3250000000%	$15,834,890.10	$57,071.58	$0.00	$0.00	$0.00	$0.00	$0.00	$57,071.58
R	$100.00	0.0000000000%	0.0000000000%	$0.00	$0.09	$0.00	$0.00	$0.00	$0.00	$0.00	$0.09
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	$629.13	$0.00	$0.00	$0.00	$0.00	$0.00	$629.13
Total	$3,167,184,178.32			$3,145,651,750.44	$11,395,722.02	$0.00	$0.00	$0.00	$0.00	$0.00	$11,395,722.02

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.05AR6
Distribution Date: 06/27/2005
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	$195,982,000.00	3.3750000000%	3.3750000000%	992.01733322	2.88305038	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	2.88305038
1A1B	$21,776,000.00	3.4650000000%	3.4650000000%	992.01733330	2.95993158	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	2.95993158
2A1A	$1,589,126,000.00	3.3550000000%	3.3550000000%	992.52779288	2.86744037	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	2.86744037
2A1B1	$300,351,000.00	3.3150000000%	3.3150000000%	989.58335254	2.82484816	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	2.82484816
2A1B2	$118,354,000.00	3.4950000000%	3.4950000000%	1,000.00000000	3.00958337	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	3.00958337
2A1B3	$243,430,000.00	3.3950000000%	3.3950000000%	992.52779288	2.90162745	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	2.90162745
2A1C	$397,282,000.00	3.4650000000%	3.4650000000%	992.52779288	2.96145481	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	2.96145481
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	$3,167,184,178.00	0.8139624266%	0.8139624266%	993.20139709	0.67369052	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.67369052
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	$120,354,000.00	3.7250000000%	3.7250000000%	999.98811340	3.10412973	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	3.10412973
B2	$41,173,000.00	3.7550000000%	3.7550000000%	999.98811333	3.12912953	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	3.12912953
B3	$12,669,000.00	3.7850000000%	3.7850000000%	999.98811351	3.15412898	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	3.15412898
B4	$19,003,000.00	3.9250000000%	3.9250000000%	999.98811346	3.27079461	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	3.27079461
B5	$12,669,000.00	4.0250000000%	4.0250000000%	999.98811351	3.35412661	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	3.35412661
B6	$9,502,000.00	4.1750000000%	4.1750000000%	999.98811303	3.47912545	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	3.47912545
B7	$9,502,000.00	4.3250000000%	4.3250000000%	999.98811303	3.60412334	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	3.60412334
B8	$6,334,000.00	4.3250000000%	4.3250000000%	999.98811336	3.60412378	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	3.60412378
B9	$11,085,000.00	4.3250000000%	4.3250000000%	999.98811367	3.60412359	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	3.60412359
B10	$19,003,000.00	4.3250000000%	4.3250000000%	999.98811346	3.60412409	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	3.60412409
B11	$23,754,000.00	4.3250000000%	4.3250000000%	999.98811358	3.60412394	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	3.60412394
B12	$15,835,078.32	4.3250000000%	4.3250000000%	999.98811373	3.60412363	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	3.60412363
R	$100.00	0.0000000000%	0.0000000000%	0.00000000	0.90000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.90000000
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
06/2005 DISTRIBUTION REPORT
SERIES: WAMU 05AR6
WEIGHTED AVERAGE PC RATE: 4.39297%
WEIGHTED AVERAGE MATURITY: 358.43178
WEIGHTED AVERAGE LOAN AGE: 5.47905
POOL NUMBER: 2705
ISSUE DATE: 04/26/2005
CERTIFICATE BALANCE AT ISSUE: $240,617,489.28
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
BALANCES FROM LAST FISCAL MONTH-END:	1068		$238,877,701.43
PRINCIPAL POOL COLLECTION(S):
Scheduled Principal Collection Due Current Month		($141,310.04)
Unscheduled Principal Collection/Reversals		$90,072.44
Liquidations-in-full	13	$2,755,276.07
Subsequent Recoveries		$0.00
Net principal Distributed		$2,704,038.47	-$2,704,038.47

CAPITAL LOSS (PRINCIPAL WRITTEN OFF):			$0.00

BALANCE CURRENT FISCAL MONTH-END:	1055		$236,173,662.96

SCHEDULED INTEREST AT MORTGAGE RATE:		$959,088.45

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
06/2005 DISTRIBUTION REPORT
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
SCHEDULED SERVICING FEE EXPENSES:		$84,602.43

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:		$3,578,524.49

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
06/2005 DISTRIBUTION REPORT
SERIES: WAMU 05AR6
WEIGHTED AVERAGE PC RATE: 4.34347%
WEIGHTED AVERAGE MATURITY: 360.48732
WEIGHTED AVERAGE LOAN AGE: 5.13873
POOL NUMBER: 2706
ISSUE DATE: 04/26/2005
CERTIFICATE BALANCE AT ISSUE: $2,926,566,689.04
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
BALANCES FROM LAST FISCAL MONTH-END:	4609		$2,906,774,049.00
PRINCIPAL POOL COLLECTION(S):
Scheduled Principal Collection Due Current Month		($1,919,399.34)
Unscheduled Principal Collection/Reversals		$2,787,251.36
Liquidations-in-full	36	$24,747,247.09
Subsequent Recoveries		$0.00
Net principal Distributed		$25,615,099.11	-$25,615,099.11

CAPITAL LOSS (PRINCIPAL WRITTEN OFF):			$0.00

BALANCE CURRENT FISCAL MONTH-END:	4573		$2,881,158,949.89

SCHEDULED INTEREST AT MORTGAGE RATE:		$11,550,717.85

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
06/2005 DISTRIBUTION REPORT
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
SCHEDULED SERVICING FEE EXPENSES:		$1,029,481.85

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:		$36,136,335.11

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
06/2005 DISTRIBUTION REPORT
SERIES: WAMU 05AR6
WEIGHTED AVERAGE PC RATE: 4.34723%
WEIGHTED AVERAGE MATURITY: 360.33159
WEIGHTED AVERAGE LOAN AGE: 5.16452
POOL NUMBER: ALL
ISSUE DATE: 04/26/2005
CERTIFICATE BALANCE AT ISSUE: $3,167,184,178.32
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
BALANCES FROM LAST FISCAL MONTH-END:	5677		$3,145,651,750.43
PRINCIPAL POOL COLLECTION(S):
Scheduled Principal Collection Due Current Month		($2,060,709.38)
Unscheduled Principal Collection/Reversals		$2,877,323.80
Liquidations-in-full	49	$27,502,523.16
Subsequent Recoveries		$0.00
Net principal Distributed		$28,319,137.58	-$28,319,137.58

CAPITAL LOSS (PRINCIPAL WRITTEN OFF):			$0.00

BALANCE CURRENT FISCAL MONTH-END:	5628		$3,117,332,612.85

SCHEDULED INTEREST AT MORTGAGE RATE:		$12,509,806.30

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
06/2005 DISTRIBUTION REPORT
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
SCHEDULED SERVICING FEE EXPENSES:		$1,114,084.28

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:		$39,714,859.60

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.05AR6
Distribution Date: 06/27/2005

Distribution by Group
Pool ID		Principal		Interest		Total
Pool - 2705		$2,704,038.47		$874,486.02		$3,578,524.49
Pool - 2706		$25,615,099.11		$10,521,236.00		$36,136,335.11
Aggregate		$28,319,137.58		$11,395,722.02		$39,714,859.60

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 - 2705	$238,877,701.43	1068	13	1055	$236,173,662.96	($141,310.04)	$2,755,276.07	$90,072.44	$2,704,038.47
Pool - 2706	$2,906,774,049.00	4609	36	4573	$2,881,158,949.89	($1,919,399.34)	$24,747,247.09	$2,787,251.36	$25,615,099.11
Aggregate	$3,145,651,750.43	5677	49	5628	$3,117,332,612.85	($2,060,709.38)	$27,502,523.16	$2,877,323.80	$28,319,137.58

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 - 2705	11	$2,291,138.75	0	$0.00	0	$0.00	0	$0.00
Pool - 2706	30	$19,303,021.39	0	$0.00	0	$0.00	0	$0.00
Aggregate	41	$21,594,160.14	0	$0.00	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 - 2705		0		$0.00		0		$0.00
Pool - 2706		0		$0.00		0		$0.00
Aggregate		0		$0.00		0		$0.00

Aggregate Loss Amounts by Group
Pool ID			Count			Loss Amount
Pool - 2705			0			$0.00
Pool - 2706			0			$0.00
Aggregate			0			$0.00

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.05AR6
Distribution Date: 06/27/2005

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.05AR6
Distribution Date: 06/27/2005

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 Group I and Group II Senior Certificates. The "Prospectus Supplement" is that certain Prospectus Supplement, dated April 20,2005 to that certain Prospectus Supplement,dated April 20,2005, 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 200506 are as follows:

Class			Class Principal Balance
B1			$120,351,306.66
B2			$41,172,078.61
B3			$12,668,716.49
B4			$19,002,574.74
B5			$12,668,716.49
B6			$9,501,787.36
B7			$9,501,787.36
B8			$6,333,858.25
B9			$11,084,751.94
B10			$19,002,574.74
B11			$23,753,468.43
B12			$15,834,723.95
Total			$300,876,345.01
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 Group 1 and Group 2 Senior Certificates. The "Prospectus Supplement" is that certain Prospectus Supplement, dated April 20,2005 to that certain Prospectus Supplement,dated April 20,2005, 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 200506 are as follows:

Class			Class Principal Balance
B1			$120,351,306.66
B2			$41,172,078.61
B3			$12,668,716.49
B4			$19,002,574.74
B5			$12,668,716.49
B6			$9,501,787.36
B7			$9,501,787.36
B8			$6,333,858.25
B9			$11,084,751.94
B10			$19,002,574.74
B11			$23,753,468.43
B12			$15,834,723.95
Total			$300,876,345.01
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-AR6 8-K