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The "ROCKIN' RIVERFEST" 5k, 10K, Half Marathon & Fun Run!

location_city St Charles

location_on Missouri

flag United States

calendar_today 04 Jul, 2026

directions_run Running

language Official Website

Register

About the Event

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 5th.

Starting at  8:00 am. 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) 

For registering, you not only get an awesome  Race/Run/Walk through the historic district and all the action of Riverfest on the Riverfront, you get a custom finishers Rockin' Riverfest T shirt, (Shirts guaranteed to those that register by June 15) Racers Village Colas, Sports drink, Race Snacks, Professional race Timing, Instant Results, Timeed Splits, Neck Buff, Custom Bib Number, and all Half Marathon participants also recieve a finishers medal! The race also includes Free downloadable finish line pics and video!  Whew!  Awards Ceremony on Podiums.  Water/Sports drink and pickle juice and Ice at aid stations and Racers Village. 10k and 13.1 see an additional aid stations. Music rocking at racer village!

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. Half Marathon finishers get a finishers medal.  Splits are 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"  

Packet pick up July 3 at Bike Stop Cafe 3-6pm and race morning in Racers Village 6:30-7:30 am.

National Anthem goes at 7:56 am, you go at 8!

Have your friends join you and lets go!! 

 

 

 

Races Offered

5K

Jul 04, 2026

straighten

Distance — 5K

terrain

Type — Road running

timer

184 days remaining

10K

Jul 04, 2026

straighten

Distance — 10K

terrain

Type — Road running

timer

184 days remaining

Half-Marathon

Jul 04, 2026

straighten

Distance — Half-Marathon

terrain

Type — Road running

timer

184 days remaining

Marathon

Jul 04, 2026

straighten

Distance — Marathon

terrain

Type — Road running

timer

184 days remaining

Weather Overview

These values represent the 3-year monthly averages for July in St Charles.

Temp (°C)
Feels Like (°C)
thermostat 21.1° / 31.4°
wb_sunny 22.5° / 33.3°
Wind (km/h)
Humidity (%)
air 8.9 /
water_drop 72.1%

About St Charles

Scenic view of

Saint Charles is a city in and the county seat of St. Charles County, Missouri, United States. The population was 70,493 at the 2020 census, making St. Charles the eighth-most populous city in Missouri. Situated on the Missouri River near its mouth at the Mississippi, St. Charles is a northwestern suburb of St. Louis.

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