20th Annual Missouri American Water MR340
Missouri River Relief
The MR340 is the world's longest nonstop river race! Held each summer during a full moon on the Missouri River, racers traverse 340 miles from Kaw Point in Kansas City, KS to the Lewis & Clark Boathouse and Museum in St Charles, MO. Racers will race through the day and night.
2025 will be the 20th Annual running of the race. The 2025 Missouri American Water MR340 will be held July 8-11, 2025. Mandatory Race Check-in is Monday July 7. Race Start is Tuesday, July 8, 2025 - solo boats start at 7am while tandems and teams start at 8 am. Racers have 85/86 total hours to complete the race by 9pm Friday, July 11, 2025.
Up to 500 boats carrying 700 racers will take on the challenge each year. This yearly event is a fundraiser for the nonprofit Missouri River Relief. All proceeds allow MRR to carry out their mission to engage communities and individuals along the Missouri River in exploration, enjoyment, restoration and care of the river through education, stewardship, and races/recreation.
Event Details
- https://www.mr340.org
- Tuesday, July 8, 2025 thru Friday, July 11, 2025
- 7am Solo Start 8am All Other Boats
- Kaw Point Park Kansas City, KS
Before April 1
| Solo Divisions: Paddle, Pedal, Rowing, SUP | $78.27 or less | Open | |
| Tandem Divisions: Paddle, Pedal, Rowing, SUP | $78.27 or less | Open | |
| Team Divisions: 3-4 Paddle, Pedal, Rowing, SUP | $78.27 or less | Open | |
| Voyageur 5-9 and Dragonboat 9+ Paddle, Pedal, Rowing, SUP | $78.27 or less | Open |
After April 1
| Solo Divisions: Paddle, Pedal, Rowing, SUP | $282.77 or less | Open | |
| Tandem Divisions: Paddle, Pedal, Rowing, SUP | $282.77 or less | Open | |
| Team Divisions: 3-4 Paddle, Pedal, Rowing, SUP | $282.77 or less | Open | |
| Voyageur 5-9 and Dragonboat 9+ Paddle, Pedal, Rowing, SUP | $282.77 or less | Open |