Rockin' Riverfest Half Marathon

JUL
4
2026
Rockin' Riverfest on July 4 at Frontier Park features 5K, 10K, a 13.1 mile half marathon and a 3K fun run along the Katy Trail with timed results, aid stations, medals and event shirts.
Sat 4 Jul 2026
13 miles 10 kilometers 5 kilometers

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Rockin' Riverfest Half Marathon and Races

The Rockin' Riverfest takes place on July 4 at Frontier Park in St Charles, Missouri. The event offers multiple race distances that start at the Frontier Park pavilion and run along the Katy Trail and adjacent single-track riverside trails beside the Missouri River.

  • 5K
  • 10K
  • 3K fun run/walk/stroll
  • 13.1 miles (Half Marathon)

Course notes: the route uses the Katy Trail and sections of single-track riverside trail, passes aid stations along the way, and returns to Racers Village. The half marathon includes a turnaround and a second lap through aid stations.

Event services and amenities include finisher medals, custom Rockin' Riverfest T-shirts (shirts guaranteed to registrants by June 15), custom bib numbers, professional race timing with instant results and timed splits, downloadable event photos and finish line video, and aid stations supplying water, sports drink, and ice. Racers Village features music and event activities; the finish pavilion adds a cold plunge activity this year.

Awards are presented to the top three in several age groups for the 5K, 10K, and half marathon, with age brackets from 1-13 up to 70 and over. Packet pickup is available the day before at Bike Stop Cafe and on the morning of the event in Racers Village.

The event coincides with Saint Charles Riverfest on the riverfront. Fundraising supports the St Charles School District Cross Country program; proceeds stay local for equipment and program needs. Visit the organization's website for the most recent information.

13 mi
The Rockin' Half Marathon
10 km
10k
5 km
5k Fun Run/walk/stroll
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