The Race

Missouri River 340

The MR340 is a true community event - a community created by the river. To witness the determination of the racers, the grit of the ground crews and the hospitality of the volunteers is a truly inspiring thing. The race is hosted by Missouri River Relief, a nonprofit dedicated to connecting people to the Missouri River through stewardship, education and recreation. We are so proud to be carrying the tradition of this world-class race.

The race goes 24-hours a day, with racers stopping at boat ramps along the way to resupply or rest, often with “Ground Crews” of family or friends that follow along the race. There are 5 checkpoints where racers must meet the cutoff time or be disqualified from the race.

Race Dates

There are 2 full moon weeks targeted for the race:

• Primary date is July 28 - July 31, 2026 (mandatory Race Check-in July 27, 2026)
• Secondary date is August 25 – August 28, 2026 (mandatory Race Check-in August 24) - in case of flooding or safety issues.

It’s possible the race could be postponed due to flooding or other issues of safety. This has happened 4 times in the history of the race. If there is a year where it is unsafe to race either the primary or secondary race dates, there will be no race that year.

Registration Opens at 8:00am CST on New Year’s Day, January 1

Registration for the MR340 is per person, not per boat. Each racer pays a $275 registration fee. Racers who register before April 1 can register with a non-refundable $75.00 deposit and fundraise or pay the remaining $200 by April 1. More information about how fundraising works can be found here.

New registrations can register until July 23, 2026.