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

Heatwave Half Marathon - St. Louis

Saint Louis, Missouri, United States

01 Aug, 2026 (Sat)

$22.00 - $62.00

Running

1.6K 5K 10K Half-Marathon +1

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

Saint Louis, Missouri, United States

08 Aug, 2026 (Sat)

$27.50 - $80.00

Running

1.6K 5K 10K Half-Marathon +2

The Labor Day Slay

Saint Louis, Missouri, United States

29 Aug, 2026 (Sat)

$39.00 - $79.00

Running

5K 10K Half-Marathon

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

Saint Louis, Missouri, United States

26 Sep, 2026 (Sat)

$22.00 - $62.00

Running

1.6K 5K 10K Half-Marathon

Spooky Sprint- St. Louis

Saint Louis, Missouri, United States

24 Oct, 2026 (Sat)

$22.00 - $56.00

Running

1.6K 5K 10K Half-Marathon

The Great GO! St. Louis Halloween Race

Saint Louis, Missouri, United States

24 Oct, 2026 (Sat) – 25 Oct, 2026

$20.00 - $65.00

Running

5K 1.6K Half-Marathon 10K +4

Saint Louis Half Marathon and 5K

Saint Louis, Missouri, United States

08 Nov, 2026 (Sun)

$45.00 - $85.00

Running

Half-Marathon 5K

Turkey Trails - St. Louis

Saint Louis, Missouri, United States

28 Nov, 2026 (Sat)

$22.00 - $56.00

Running

1.6K 5K 10K Half-Marathon

Greater St. Louis Marathon

Saint Louis, Missouri, United States

03 Apr, 2027 (Sat)

$25.00 - $85.00

Running

Marathon Half-Marathon 10K 5K +5