UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

~~SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549~~FORM8-K

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): ~~March 26~~ August 23, 2019

POTOMAC FUTURES FUND L.P.
(Exact name of registrant as specified in its charter)

New York

(State or other jurisdiction
of incorporation)

000-50735

(Commission File
Number)

13-3937275

(IRS Employer
Identification No.)

c/o Ceres Managed Futures LLC 522 Fifth Avenue New York, New York 10036 (Address and Zip Code of principal executive offices)

522 Fifth Avenue

New York, New York 10036 (Address and Zip Code of principal executive offices)

Registrant’s telephone number, including area code: (855) 672-4468

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

~~☐ Soliciting~~Securities ~~material~~ registered pursuant to ~~Rule~~Section ~~14a-~~12(b) ~~under~~of the ~~Exchange~~ Act ~~(17 CFR 240.14a-12)~~:

~~☐ Pre-commencement communications~~Title ~~pursuant~~of toeach ~~Rule~~class ~~14d-2~~Trading Symbol(bs) ~~under~~Name ~~the~~of ~~Exchange~~each ~~Act~~exchange ~~(17~~on ~~CFR~~which ~~240.14d-2(b))~~registered N/A N/A N/A

~~☐ Pre-commencement communications~~Indicate ~~pursuant~~by tocheck mark whether the registrant is an emerging growth company as defined in Rule ~~13e-4~~405 of the Securities Act of 1933 (c§ 230.405 of this chapter) ~~under~~or Rule 12b-2 of the ~~Exchange~~Securities Exchange Act ~~(17~~of ~~CFR~~1934 (§ 240.~~13e~~12b-~~4(c~~2 of this chapter)).

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐□

~~Item 5.03 Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year.~~ 1

Item 95.~~01 Financial~~02 Departure ~~Statements~~of ~~and~~Directors ~~Exhibits~~or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

The registrant does not have a board of directors. The registrant’s general partner, Ceres Managed Futures LLC (dthe “General Partner”) ~~Exhibits~~, is managed by a board of directors.

~~The~~Effective ~~following~~August ~~exhibit~~23, is2019, ~~filed~~Feta ~~herewith~~Zabeli resigned as a director of the General Partner.

Exhibit No.	Description
3.1	Amendment No. 2 to the Limited Partnership Agreement of the Registrant.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the ~~Registrant~~registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

POTOMAC FUTURES FUND L.P. By: Ceres Managed Futures LLC, General Partner By: /s/ Patrick T. Egan Patrick T. Egan President and Director

	POTOMAC FUTURES FUND L.P.

	By: Ceres Managed Futures LLC, General Partner

	By:	/s/ Patrick T. Egan
		Patrick T. Egan
		President and Director


Date: August 28, 2019

Date: March 29, 2019

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