The "ROCKIN' RIVERFEST" 5k, 10K, HALF MARATHON & Fun Run!
- Date
- July 4, 2026
- Location
- Frontier Park, St Charles, MO
- Distance
- 5k · 10k · 5K fun run/walk/stroll & more
From the Organizer
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 including Finishers Medals, T-Shirts, Swag and the works! The Parade starts at 10:00 this year so run it and stick around for the Parade!
Starting at 7:30am. 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 a super fun Race/Run/Walk through the historic district and all the action of Riverfest on the Riverfront, You get a Big Ol' Finishers Medal, Custom Rockin' Riverfest T shirt, (Shirts guaranteed to those that register by June 15) Racers Village Colas, Sports drinks, Race Snacks, Professional race Timing, Instant Results, Timed Splits, Custom Bib Number, and FREE Throne Sport Coffee drinks. The race also includes Free downloadable event pics and finish line video. Awards Ceremony on Podiums with more awards for 1-3rd. Water/Sports drink and Ice at aid stations and Racers Village. 10k and 13.1 see an additional aid stations. Music rocking at racer village and -new this year- hose off and try out the Cold Plunge at the finish line pavillion!
A great way to kick off your July 4th festivities. After the race, stick around and make a day of it enjoying the Parade, Historic riverfront shops, Historic St Charles and all of the Riverfest activities. Bring the Friends and Fam as we will have poster board and markers available so they can make signs and cheer you on!
The July 4th Parade starts at 10 am and is 1 block away.
Custom Rockin' Riverfest awards 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. 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 Thursday, July 3rd at Bike Stop Cafe 3-6pm and race morning in Racers Village 6:15-7:15 am.
National Anthem goes at 7:26 am, you go at 7:30!
This is gonna be a fun one, dont miss it, get your friends/fam to join you and lets go!!
Events
Weather
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
88°
Typical Low
67°
Chance of Rain
30%
Based on US Climate Normals data from St Peters 2 Se, 3 mi from the venue.
Host City
About St Charles, MO
Population
71,048
as of 2023
Elevation
570 ft
Nearest Airport
STL
St. Louis Lambert International Airport · 9 mi
Time Zone
Central Time
From Endurance Grid
A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at The "ROCKIN' RIVERFEST" 5k, 10K, HALF MARATHON & Fun Run!, put it on the calendar, and turn “someday” into a start date.
26
Days to train
- Race
- The "ROCKIN' RIVERFEST" 5k, 10K, HALF MARATHON & Fun Run!
- Date
- July 4, 2026
- Location
- Frontier Park, St Charles, MO
Coming Up
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From Endurance Grid
About This Sport
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
The half marathon is the distance where you find out what you're actually made of. Long enough to demand real preparation. Short enough that it doesn't consume your life to train for it. Most people who run their first half describe it as the race that changed their relationship with what they're capable of. Once you cross this finish line, the bar moves. That's not a warning — that's the point.
Race day energy varies by event size, but the finish line feeling is the same regardless. Big races keep the noise going the whole way. Smaller races give you stretches where it's just you and the miles — and that solitude becomes its own kind of fuel.
The half marathon rewards people who show up for the boring training miles.
How long to train: 10–14 weeks. If you're already running consistently, 10 weeks of structured buildup is enough. If you're building from a casual base, give yourself 14.
Running
From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Frequently Asked Questions (FAQs)
- What is The "ROCKIN' RIVERFEST" 5k, 10K, HALF MARATHON & Fun Run!?
- The "ROCKIN' RIVERFEST" 5k, 10K, HALF MARATHON & Fun Run! is a running race held in St Charles, Missouri on July 4, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
- When and where is The "ROCKIN' RIVERFEST" 5k, 10K, HALF MARATHON & Fun Run!?
- Saturday, July 4, 2026 in St Charles, Missouri at Frontier Park, St Charles, MO. Check the event page for exact start times and wave schedules.
- How do I register for The "ROCKIN' RIVERFEST" 5k, 10K, HALF MARATHON & Fun Run!?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
The "ROCKIN' RIVERFEST" 5k, 10K, HALF MARATHON & Fun Run!
Jul 4, 2026