Join the St. Louis Track Club in beautiful Weldon Spring, MO for the Weldon Spring Trail Marathon and Half. Both courses offer participants a breathtaking journey through scenic landscapes, combining natural beauty with a challenging course. As runners navigate the trail, they are treated to a variety of stunning views that enhance the overall experience.

Wooded bliss, scenic overlooks, water features, wildlife encounters and diverse terrain make this race a must-do for your 2025 race season. The Weldon Spring Trail Marathon and Half provides not only a physical challenge but also a feast for the senses as participants immerse themselves in the beauty of the natural surroundings.

When: March 22, 2025 at 8am
Where: Weldon Spring Site, 7295 MO-94, St Charles, MO 63304
Registration: Marathon is $100, Half is $80 through 2/24, price increase after 2/25/25

SLTC Members save $10
Swag: Race shirt included with registration. Be sure to register by the March 6th deadline to guarantee your size.

Refund/Cancellation Policy: No refunds, entries are not transferable to other events but may be transferred to another person before MARCH 20, 2025

The safety of our participants is our highest priority. Races will be held rain, snow, or shine and will not be cancelled except for cases of severe weather or unsafe road/trail conditions. Less threatening conditions may cause alterations of the course or post event activities to ensure participant, volunteer, and community safety. We are a nonprofit organization and all net proceeds are used to further the St. Louis Track Club’s mission in the community. As such, no refunds or credits will be given in the case of cancellation due to weather.

Runners are responsible for checking course maps and understanding the race course https://www.stlouistrackclub.com/weldon-spring-marathon-and-half.