Open Water Swim - 370 Lakeside Park

A unique 5k/10k/Half Marathon in the heart of downtown St. Charles with a little bonus, non-technical, shady trail off of the Katy....truly a hidden gem! Come on out and see for yourself! Enjoy these flat and fast routes starting on the Katy Trail near Bike Stop Cafe and the Katy Depot. All the routes go through Frontier Park then north on the soft path. Beautiful river views! Post run fun at the Bike Stop Cafe including coffee and beer specials and social time on the patio!

For more information including, but not limited to race options, course maps, schedule of events, packet pickup, volunteer signup, sponsorship info, parking, etc. Please visit - https://www.mseracing.com/love-to-run-st-charles

Join the O'Fallon Chamber of Commerce on July 4th for the 42nd Annual Firecracker 5K, 10K, and 1 Mile Fun Run! This race includes a commemorative t-shirt, Finisher Medal, Business Expo, and access to the world-famous Runners Only Area! 5K & 10K finishers will receive live text results, personalized results emails and free video of their finish line moment!

Visit www.firecrackerrun.net for more information about the race!

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.

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, Timed Splits, Custom Bib Number, and ALL 5k, 10k and 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. 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 2 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!

Get your friends to join you and lets go!!

The St. Luke’s New Town Triathlon has become one of the most popular triathlons in the Midwest. Originally a biathlon started many years ago, the event evolved into the John Howard New Town Duathlon, and now in its current format as an ‘almost’ Olympic distance triathlon.

This year the distances remain at a .62 mile Swim, 20 mile Bike and a 4 mile Run for the Long Course, and .3 mile Swim, 17 mile Bike and a 2 mile Run for the Sprint Course. The Kid’s Triathlon and EXPO will be held on Saturday, July 11th and the main event will be on Sunday, July 12th, 2026.

Set in New Town, St.Charles, the venue is tailor made for a fast race. The flat course profile makes this event the perfect race to open up full bore or try the sport of triathlon for the first time.

Sponsored by St. Luke’s Hospital and produced by Big Shark Bicycle Company/Big Shark Events.

We encourage you to sign up early to get a jump on the competition! You can also train with us at our Open Water Swim Series running almost every Saturday from May 2nd through June 27th, 2026. There will not be swims on Memorial Day Weekend and July 4th Weekend.