The "ROCKIN' RIVERFEST" 5k, 10K, Half Marathon & Fun Run!
St Charles, United States of America · Saturday 4 July 2026
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. 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 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, Timed Splits, Custom Bib Number, and FINISHERS MEDAL! The race also includes Free downloadable finish line pics and video. Whew! Awards Ceremony on Podiums. 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! Cheer on your friends and family! 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! The full Parade starts at 10 am and is 1 block away!. 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. 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, ch
Difficulty Calculator
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Adjusted Time
1:40:47
Time difference: -4.2 minutes compared to a flat, road, temperate course.
Course Details
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The "ROCKIN' RIVERFEST" 5k, 10K, Half Marathon & Fun Run! 2026 Course Analysis
The "ROCKIN' RIVERFEST" 5k, 10K, Half Marathon & Fun Run! is a half marathon held in St Charles, United States of America, scheduled for Saturday 4 July 2026. The course is run on road surface with 0m of total elevation gain, reaching a maximum altitude of 0m above sea level. For registration and full race details, visit the official The "ROCKIN' RIVERFEST" 5k, 10K, Half Marathon & Fun Run! website.
Elevation Profile
This is a very flat course with only 0m of total elevation gain across the full distance. The course ranges from 0m to 0m above sea level — a 0m elevation range that makes it one of the flatter races available. Runners targeting a personal best will appreciate the minimal climbing.
Surface Type: Road
The "ROCKIN' RIVERFEST" 5k, 10K, Half Marathon & Fun Run! is run on road surfaces, which provide the fastest and most predictable conditions for marathon running. Road courses allow for consistent pacing and are typically the best choice for runners targeting a personal best time.
How Difficult Is The "ROCKIN' RIVERFEST" 5k, 10K, Half Marathon & Fun Run!?
Our difficulty rating for The "ROCKIN' RIVERFEST" 5k, 10K, Half Marathon & Fun Run! is calculated using a model that combines elevation gain, temperature impact, and surface type. Use the difficulty calculator above to enter your target finish time and see exactly how many minutes this course would add or subtract compared to a perfectly flat, cool, road-based half marathon. Faster runners and slower runners are affected differently by the same course conditions, so the difficulty is personalised to your pace.
Looking for an easier marathon or a tougher challenge? You can also compare The "ROCKIN' RIVERFEST" 5k, 10K, Half Marathon & Fun Run! against other half marathons to find the right race for your goals.
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