In order to use TriSignUp, your browser must accept cookies. Otherwise, you will not be able to register for races or use other functionality of the website. However, your browser doesn't appear to allow cookies by default.
If you still see this message after clicking the link, then your browser settings are likely set to not allow cookies. Please try enabling cookies. You can find instructions at https://www.whatismybrowser.com/guides/how-to-enable-cookies/auto.
Additional race information can be found at https://www.heartlandracingco.com/river-rock-tri.html#/.
The River Rock Triathlon is the first known Missouri Triathlon to take place in a river!
We are super excited to hop in the river, bike across the river, and run alongside it AND breakfast for participants on Saturday Morning.
Saturday Morning: June 12th, 2021
- Adult Race
- Post-Race Breakfast
If you have any questions about this race, click the button below.
Please complete the following survey to help us better understand your race experience.