Friday October 8

Potomac River

Washington DC to

Mount Vernon


If you are on this page, you are planning to swim October 8 or volunteering to crew. 

Our objective is to provide every swimmer a safe opportunity to complete the entire swim. Unless constrained by safety concerns and/or permits, we will swim rain or shine, day and night. Potomac tides switch approximately every six hours, and with variable winds, that generate currents that assist and hinder your progress. Prepare yourself and your crew for difficult conditions, and immeasurable fun! Because this swim will be in October, be prepared and capable of swimming in temps from low 60’s to 70 degrees. Additionally, we plan to start the swim at 7:30am.  Some will finish before sunset, some won’t.  Be prepared for a night swim finish. We will celebrate the following morning with a brunch and awards ceremony.

DETAILS: Swim date is October 8th, 2021. Swim Open to qualified swimmers and relays. 

All swimmers must be supported by crew, power boat (supplied), kayaker (supplied if requested) and official observer (supplied). 

Solo: cost is $2775  (+$175 if you need a kayaker and kayak to be supplied) 

Relay: $1500 per relay plus add $575 per person (3, 4, 5 and 6 person relays). 

Brunch reception, swag, unique finisher award, hotel discounts and more will be included. Final information will be firmed up as we approach swim date.

FAQ AND TIMELINE CAN BE FOUND HERE - updated 9/16

Hotel information and 20% discount reservations can be found here - National Harbor Hyatt Place

DC Marathon Registration options *

  • DC Marathon Solo Swimmer

    DC Marathon Solo Swimmer

    Secure a spot in the Inaugural DC Marathon Swim.

    $2,775.00 ea.

  • DC Marathon Relay - Deposit

    DC Marathon Relay - Deposit

    Deposit to secure a spot in the Inaugural DC Marathon Swim. Relay will be billed later at $575 for each swimmer.

    $1,500.00 ea.

  • I am a relay swimmer

    I am a relay swimmer

    All relay swimmers must register with this field. Please specify your team and/or team captain.

    $575.00 ea.

  • Please supply me a kayak and kayaker

    Please supply me a kayak and kayaker

    Please supply a kayak and kayaker for me - $175

    $175.00 ea.

  • I am a kayaker with my own kayak

    I am a kayaker with my own kayak

    Please register me as a kayaker to support the swim. If I am supporting a specific swimmer, he or she is listed below.

    $0.00 ea.

  • I am a kayaker, but need a kayak.

    I am a kayaker, but need a kayak.

    I need a kayak. Please register me as a kayaker to support the swim. If I am supporting a specific swimmer, he or she is listed below.

    $0.00 ea.

  • I am an observer

    I am an observer

    I am happy to help by observing and realize I will be randomly assigned to a swimmer. Please register me as an observer.

    $0.00 ea.

  • I am a crew member

    I am a crew member

    I will be supporting a swimmer as a crew member. If i am supporting a specific swimmer, he or she is designated below.

    $0.00 ea.

  • Saturday Award Brunch

    Saturday Award Brunch

    Please include TOTAL number in your party including yourself. Swimmer's meal is included. Cost for other members of your party is ala carte and reasonable.

    $0.00 ea.



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