Skip to main content
Run Vibes

Half Marathons in Saint Louis, MO

Saint Louis, MO has 3 upcoming Half Marathons. Half marathons are the fastest-growing race distance, offering a true endurance challenge with a more accessible training window than the full marathon.

3 upcoming races listed

Fun racesScenic racesCompetitive racesQuirky racesFestive racesFor a Cause racesBeginner-friendly
Students on the GO!

A 20-week training program for high school students to prepare for a half marathon or 10K, fostering activity and goal setting.

Sat, Apr 11, 2026, 7:00 AM CDT13.1 MilesSaint Louis, MO
Steady EffortRUN

Course · Flat · Timed race

Swifty Fun Run - 1 mile | 5k | 10k | 13.1 mile

Run and celebrate Taylor Swift's music and artistry on scenic routes, complete with themed costumes, upbeat music, and a lively post-race party.

  • Fun
  • Scenic
  • Quirky
  • Festive
Sat, Aug 8, 2026, 7:00 AM CDT13.1 MilesSaint Louis, MO
Steady EffortRUN

Course · Rolling · Timed race

Saint Louis Half Marathon and 5K

Run a classic road race through St. Louis's historic Forest Park, celebrating nearly five decades of tradition with competitive awards and a scenic course.

  • Scenic
  • Competitive
Sun, Nov 8, 2026, 7:30 AM CST13.1 MilesSaint Louis, MO
Steady EffortRUN

Course · Road · Timed race

Weekly picks

Get weekly race picks for Missouri

New races, upcoming events, and hidden gems in Missouri — straight to your inbox.

No spam. Unsubscribe anytime. See our Privacy Policy.

More Half Marathon races

All races in Saint Louis, MOHalf Marathons in MissouriHalf Marathons in Kansas City, MOHalf Marathons in Springfield, MOHalf Marathons in St. Louis, MOHalf Marathons in Branson, MOHalf Marathons in Columbia, MOHalf Marathons in Parkville, MOHalf Marathons in Saint Joseph, MOHalf Marathons in Maryland Heights, MOHalf Marathons in Cape Girardeau, MOHalf Marathons in Greater St. Louis

Other distances in Saint Louis, MO

5Ks in Saint Louis, MO10Ks in Saint Louis, MOMarathons in Saint Louis, MO