2026 - The "ROCKIN' RIVERFEST" 5k, 10K, Half Marathon & Fun Run!
2026 distances
Running
5k
Start at the Frontier park pavillion and head north on the Katy trail and into the single track riverscene trails then through the water station at mile 2 and stride it out on the Katy back to Racers village to finish.
10k
Start at the Frontier park pavillion and head north on the Katy trail and into the single track riverscene trails then through the water station at mile 2 and stride it out on the Katy to the second section of riverscene trails then back on the Katy to Racers village to finish.
5K fun run/walk/stroll
Start at the Frontier park pavillion just after the 5/10k and head north on the Katy trail and into the single track riverscene trails then through the water station at mile 2 and back to Racers Village. This is NOT a timed event but the Rockin' Riverfest bib number and all of the fun is!
The Rockin' Half Marathon
Start at the Frontier park pavillion and head north on the Katy trail and into the single track riverscene trails then through the water station at mile 2 and stride it out on the Katy to the Turn around point, Back through the Aid Station and into the second section of riverscene trails Through the South Aid Station then back on the Katy to Racers village to the Turn around point (also an aid station) and take another lap!
Race-day weather
Conditions on July 4, 2026 — historical Open-Meteo data.
The sun rises at 5:42 AM and sets at 8:30 PM local time (CDT) in Saint Charles on July 4, 2026 — 14h 48m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
Reviews
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2026 results — The "ROCKIN' RIVERFEST" 5k, 10K, Half Marathon & Fun Run!
749 finishers across 4 distances · leading places in the 5k, Overall Results
| Place | Name | Time | Pace |
|---|---|---|---|
| 1 | Sam Forstner | 0:04 | 0:01 /mi |
| 2 | Xander Smith | 19:05 | 6:09 /mi |
| 3 | Andrew Johnson | 19:18 | 6:13 /mi |
| 4 | Charlotte Gould | 19:37 | 6:19 /mi |
| 5 | Grady Lewis | 19:42 | 6:20 /mi |
Every finisher is on the results page, filterable by distance, gender and age group.
Other races near Saint Charles
Different organizers, within 40 miles, in the next three months
MO' Cowbell Marathon/Half-Marathon/10K/5K
Chesterfield Turkey Trot
Dashing through Defiance - 1 mile | 5k | 10k
Wild in the Woods - 5 & 10 mile Trail Race
🏃 Plan Your Next Race in Saint Charles
Find upcoming events by distance:
- Saint Charles 5K Races 5 races
- 10K Run Events in Saint Charles 4 races
- Saint Charles Half Marathons 4 races
- Saint Charles Running Calendar 2026 8 races
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 10 Saint Charles events
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