Frontier Park, St Charles MO
Saturday, July 4th, 2026
Welcome to the the Rockin' Riverfest 5k, 10k Half Marathon and Fun Run!
The Rockin' Riverfest is a fun, flat, fast, family friendly event taking place on Saturday Morning July 4th.
Race/Run/Jog or Walk starting on the Katy trail through the Shady single track trails right beside the beautiful Missouri river. Pass the water/aid station at mile 1.5 (also mile 4 and 5 for the 10K and double that for the Half).
Cheer on your friends and family! A great way to continue your July 4th festivities. After the race, stick around and make a day of it enjoying the Historic riverfront shops, Historic St Charles and all of the Riverfest activities!
Custom Rockin' Riverfest MEDALS to top 3 in the following age groups: (1-13, 14-19, 20-29, 30-39, 40-49, 50-59, 60-69, 70+). 5k, 10k and Half Marathon participants will receive splits timed with Instant results!
Please consider donating a few bucks to The St Charles School District Cross Country program. 100% of proceeds stay local and go to help keep kids in shoes, jackets, tarps, drinks, and general program support.
Make a holiday of it! "Saint Charles Riverfest is the City's premier Fourth of July Festival featuring live music, great food and drinks, children's activities, a carnival and more. This year will feature a fireworks display on both evenings."
Get your friends to join you and let's go!
For more details, please visit the Rockin' Riverfest Race Page.
Course Map
Suggested Races
Find The Run Newsletter