# Half Marathon Races in St. Louis, MO (2026)

> 11 upcoming Half Marathon races in St. Louis, Missouri.

- **Page:** https://runthis.run/races/missouri/st-louis/half-marathon

## Races

- **[Golden Harvest Half Marathon & 5k/10k - St. Louis](https://runthis.run/event/rs-194427-golden-harvest-half-marathon-5k-10k-st-louis)** — Sat, Sep 26, 2026 · 12:00 AM UTC · St. Louis, MO · 50 m / 1 mile / 5K / 10K / Marathon
- **[Spooky Sprint- St. Louis](https://runthis.run/event/rs-122427-spooky-sprint-st-louis)** — Sat, Oct 24, 2026 · 12:00 AM UTC · St. Louis, MO · 50 m / 1 mile / 5K / 10K / Marathon
- **[The Great GO! St. Louis Halloween Race](https://runthis.run/event/rs-96966-the-great-go-st-louis-halloween-race)** — Sat, Oct 24, 2026 · 12:00 AM UTC · St. Louis, MO · Marathon / 10K / 5K / 1 mile
- **[Time Travel Half-Marathon/5K/10K - St. Louis](https://runthis.run/event/rs-139178-time-travel-half-marathon-5k-10k-st-louis)** — Sun, Jan 3, 2027 · 12:00 AM UTC · St Louis, MO · 100 m / 1 mile / 5K / 10K / Marathon
- **[Running From Yeti - St. Louis, MO](https://runthis.run/event/rs-145172-running-from-yeti-st-louis-mo)** — Sat, Feb 13, 2027 · 12:00 AM UTC · St. Louis, MO · 5K / 10K / Marathon / 9.3 mi
- **[Time to Paddy 5K/10K & Lucky 13.1 - St Louis](https://runthis.run/event/rs-140644-time-to-paddy-5k-10k-lucky-13-1-st-louis)** — Sun, Mar 7, 2027 · 12:00 AM UTC · St Louis, MO · 1 mile / 5K / 10K / Marathon
- **[St. Louis Marathon](https://runthis.run/event/rs-81794-st-louis-marathon)** — Sat, Apr 3, 2027 · 12:00 AM UTC · St. Louis, MO · Marathon / 10K / 5K / 1 mile
- **[DoNot Stop Half Marathon/5K/10K - St. Louis](https://runthis.run/event/rs-151348-donot-stop-half-marathon-5k-10k-st-louis)** — Sat, Apr 17, 2027 · 12:00 AM UTC · St. Louis, MO · 1 mile / 5K / 10K / Marathon
- **[Hometown Half Marathon/5K/10K - St Louis](https://runthis.run/event/rs-142775-hometown-half-marathon-5k-10k-st-louis)** — Sun, May 2, 2027 · 12:00 AM UTC · St Louis, MO · 1 mile / 5K / 10K / Marathon
- **[Heatwave Half Marathon/5K/10K - St. Louis](https://runthis.run/event/rs-192365-heatwave-half-marathon-5k-10k-st-louis)** — Sat, Jul 31, 2027 · 12:00 AM UTC · St. Louis, MO · 50 m / 1 mile / 5K / 10K / Marathon
- **[The Labor Day Slay 5K-10K-10K-RUCK & Half Marathon](https://runthis.run/event/rs-184882-the-labor-day-slay-5k-10k-10k-ruck-half-marathon)** — Sat, Sep 4, 2027 · 12:00 AM UTC · St Louis, MO · 5K / 10K / Marathon

## Nearby

- [All races in St. Louis, MO](https://runthis.run/races/missouri/st-louis.md)
- [Half Marathon races in Missouri](https://runthis.run/races/missouri/half-marathon.md)

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Source: [https://runthis.run/races/missouri/st-louis/half-marathon](https://runthis.run/races/missouri/st-louis/half-marathon) — data from Run This (runthis.run).