Frequently Asked Questions

What are the dates for the 18th Annual (2023) MR340?

There are 3 full moon weeks targeted for the race.

Primary date is Aug. 1-4 (race check-in July 31)

Secondary date is Aug. 29 – Sept. 1 (race check-in August 28)

Tertiary date is September 26-29 (race check-in September 25)

Who is Missouri River Relief?  

Missouri River Relief is the nonprofit organization that hosts the MR340. It’s our biggest fundraiser of the year. MRR is dedicated to connecting people to the Missouri River through powerful experiences. We host river clean-ups, diverse education programs and recreation events. We’ve been doing it for 20 years and we’re gaining steam! Find out more at our website

How does the fundraising work?

When you register for the race a $50 fee is required.  There is an additional requirement to raise a minimum of $200 for Missouri River Relief.  A fundraising page will be automatically created for you to share if you wish.  It’s very easy for friends or family to make a tax-deductible donation to River Relief towards your goal.  Whatever amount you haven’t raised by April 1st will be charged to your card. If you register after April 1 the full $250 will be required upon registration.

If you exceed the $200 there are prizes available from our sponsors at various levels.

Can I register my whole team at once?

No, each racer must register individually. If you are racing as a tandem or team, each person must register individually but make sure you each enter the same team name and four-digit boat number so we can match your registrations together.

What if the race gets postponed?

It’s possible the race could be postponed due to flooding or other issues of safety.  This has happened 4 times in the previous 15 races.  The 3 dates are hopefully adequate for the race to be held safely.  If there is a year where it is unsafe to race all the available dates, there will be no 340 that year.

If that’s the case your entire entry fee becomes a tax-deductible donation.  A donation receipt will be emailed for the full amount.

How fast does the race sell out? Is there a waiting list?

There is no waiting list for the MR340. We look at a variety of factors as the roster builds, and when we feel we have reached capacity, likely we will close individual divisions that hold large numbers of participants before closing registration entirely.  Reach out to with your questions.

Are there refunds?

No, there are no refunds.  This is the major fundraising event for Missouri River Relief.  River Relief has employees and many fixed cost obligations that rely totally on fundraising.  Their budget depends on a consistent, reliable fundraising model.  A no refund policy is consistent with most races that support a non-profit organization.

How can my company sponsor the race?

There are many ways to help!  Contact our Development Director Lisa Cole to start a conversation.

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