HalfRuns
The "ROCKIN' RIVERFEST" 5k, 10K, HALF MARATHON & Fun Run!

The "ROCKIN' RIVERFEST" 5k, 10K, HALF MARATHON & Fun Run!

Rockin' Riverfest offers a fast, flat course along the Missouri River with a festive July 4th atmosphere.

Race Date

Jul 4, 2026

Location

St Charles, MO

Quick facts

Date
Saturday, July 4, 2026
Location
St Charles, Missouri
Distance
Half marathon (13.1 mi) + 5K, 10K, 3K
Course
Loop Course
Terrain
Mixed
USATF certified
Not listed
Finishers on record
2,196

Highlights

Good For

PR FriendlyBeginner FriendlyDestination Worthy

Atmosphere

Local CommunityParty FinishSpectator SupportGreat MedalGreat Swag

Course

Fast FlatShaded

The Experience

The Rockin' Riverfest Half Marathon in St. Charles, Missouri, offers a fast and flat course, perfect for setting personal bests. Runners will experience a scenic journey along the Katy Trail and through shady single-track paths adjacent to the Missouri River. This event, first run in 2025, typically sees around 2,586 finishers, drawing participants from about 12 states.

The race kicks off at 7:30 AM, providing ample time to enjoy the July 4th festivities, including a parade starting at 10:00 AM. The atmosphere is family-friendly, with music at the Racers Village and a celebratory vibe. Participants receive a custom T-shirt, a finisher's medal, and access to post-race amenities, including free coffee and a cold plunge to cool off. The event is well-supported with aid stations offering water, sports drinks, and ice.

Race-provided description

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!!

Logistics

Race Day

Saturday, July 4, 2026

Start Time

7:30 AM

Giveaway

ROCKIN' RIVERFEST T-Shirt

Start Location

Frontier Park, St Charles, MO, 63301

Directions

Course Info

Course Type

Loop Course

Terrain

mixed

Scenery

Lake River, Forest

Surface

Dirt Trail, Paved

Difficulty

Ultra-Flat

Net Drop/km

0 m (Flat)

Separation

0.0%

Also Offers

5K10K3K

Quality Score

Methodology
Heritage2/20

1 year running

Size15/15

~2,586 finishers a year

Momentum5/5

growing or steady

Loyalty0/20

0% returning runners

Course & details3/15

5 timing sources

National draw6/10

runners from 12 states

Front-pack speed1/5

winner 1:32:34

Weather0/10

typical high 87°F

Race Day Weather

5-year historical avg

Start (Low)

70°

Afternoon (High)

87°

Hot conditions — adjust pace expectations, prioritize hydration

0.2"

Precipitation

8 mph

Wind

74%

Humidity

Historical Finish Times

How 2,196 finishers actually crossed the line across 1 year.

Most recent

2025

Total finishers

2,196

Median time

2:17:15

Latest turnout

2,196

States

11

10%
25%
75%
90%
1:30p50 median ≈ 2:153:45
See full results

Hover the histogram to inspect specific finish times.

Race Photos

Frequently asked

When is the The "ROCKIN' RIVERFEST" 5k, 10K, HALF MARATHON & Fun Run!?

The The "ROCKIN' RIVERFEST" 5k, 10K, HALF MARATHON & Fun Run! is held on Saturday, July 4, 2026, starting at 7:30 AM.

Where does the The "ROCKIN' RIVERFEST" 5k, 10K, HALF MARATHON & Fun Run! take place?

It takes place in St Charles, Missouri.

What distances does the The "ROCKIN' RIVERFEST" 5k, 10K, HALF MARATHON & Fun Run! offer?

The half marathon (13.1 miles), plus 5K, 10K, 3K.

Is the The "ROCKIN' RIVERFEST" 5k, 10K, HALF MARATHON & Fun Run! course flat and good for a PR?

The The "ROCKIN' RIVERFEST" 5k, 10K, HALF MARATHON & Fun Run! is a ultra-flat, loop course course.

How many people run the The "ROCKIN' RIVERFEST" 5k, 10K, HALF MARATHON & Fun Run!?

HalfRuns has finish records for 2,196 runners who have completed the The "ROCKIN' RIVERFEST" 5k, 10K, HALF MARATHON & Fun Run!.

HalfRuns editorial — independent, no paid placement.

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