The St. Charles Half Marathon is back again for 2023! Starting from Missouri Research Park, the 13.1 miles showcase the area's natural beauty. Participants receive a gender-specific Brooks tech tee and a custom finisher medal celebrating their accomplishment!

New in 2023 - We've added a 5K option to the race! Want to join the fun but prefer a shorter race? Sign up for the 5K and get the same great shirt and post-race atmosphere. The 5K will start at 8:00am to allow the half marathoners to clear the first portion of the course.

Can't make it to the in-person event but want to be a part of the fun and stay motivated? Sign up for the half marathon as a virtual runner and receive the same shirt and custom 4" die cast finisher medal as in-person participants, and complete the distance on your own!

2023 Mens Race Shirt	2023 Womens Race Shirt	2023 Half Medal Design