Half-Marathon races near Saint Louis, Missouri — 2026 running calendar

Heatwave Half Marathon - St. Louis

Saint Louis, Missouri, United States

Aug 1, 2026 (Sat)

$22.00 - $74.00

Running

1.6K 5K 10K Half-Marathon +1

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

Saint Louis, Missouri, United States

Aug 8, 2026 (Sat)

$30.00 - $85.00

Running

1.6K 5K 10K Half-Marathon +2

The Labor Day Slay

Saint Louis, Missouri, United States

Aug 29, 2026 (Sat)

$39.00 - $79.00

Running

5K 10K Half-Marathon

Golden Harvest Half Marathon & 5k/10k - St. Louis

Saint Louis, Missouri, United States

Sep 26, 2026 (Sat)

$22.00 - $62.00

Running

1.6K 5K 10K Half-Marathon

The Great GO! St. Louis Halloween Race

Saint Louis, Missouri, United States

Oct 24, 2026 (Sat) – Oct 25, 2026

$20.00 - $75.00

Running

5K 1.6K Half-Marathon 10K +4

Spooky Sprint- St. Louis

Saint Louis, Missouri, United States

Oct 24, 2026 (Sat)

$22.00 - $62.00

Running

1.6K 5K 10K Half-Marathon

Saint Louis Half Marathon and 5K

Saint Louis, Missouri, United States

Nov 8, 2026 (Sun)

$50.00 - $85.00

Running

Half-Marathon 5K

Turkey Trails - St. Louis

Saint Louis, Missouri, United States

Nov 28, 2026 (Sat)

$22.00 - $56.00

Running

1.6K 5K 10K Half-Marathon

Running From Yeti - St. Louis, MO

Saint Louis, Missouri, United States

Feb 13, 2027 (Sat)

$40.00 - $70.00

Running

5K 10K Half-Marathon +2

Greater St. Louis Marathon

Saint Louis, Missouri, United States

Apr 3, 2027 (Sat)

$25.00 - $85.00

Running

Marathon Half-Marathon 10K 5K +5