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Winter half marathons near St. Louis (2026-27)

Updated November 6, 2026

6 half marathons are on the calendar near St. Louis in winter 2026-27, starting with St. Louis Track Club 2026-2027 Frostbite Series on Saturday, December 12 in Saint Louis. That covers December to February. 6 of them publish an upcoming price increase, so signing up early saves money.

All winter races5K races (15)10K races (7)Half marathons (6)Trail races (6)

• Sat12Dec

  St. Louis Track Club 2026-2027 Frostbite Series

  Sat Dec 12 · 8:00 AM · Saint Louis · St. Louis & Inner Suburbs

  3K2 miles · Dec 265K · Jan 94 miles · Jan 2312K15K · Feb 6

  from $20Goes up Dec 6Sign up ↗
• Sun3Jan

  ShITR - Shivery Icy Trail Run - 1 Mile | 5K | 10K | Half Marathon

  Sun Jan 3 · 8:00 AM · Saint Louis · St. Louis & Inner Suburbs

  1 mile5K10KHalf marathonTrail

  from $25Goes up Nov 15Sign up ↗
• Sun3Jan

  Time Travel Half-Marathon/5K/10K - St. Louis

  Sun Jan 3 · 9:00 AM · Maryland Heights · West County & Chesterfield

  1 mile5K10KHalf marathon

  from $22Goes up Nov 9Sign up ↗
• Sat16Jan

  The Stick Season Trail Run and Series

  Sat Jan 16 · 9:00 AM · Glencoe · West County & Chesterfield

  4 miles5.5 miles · Jan 3010KHalf marathon · Jan 30Trail

  from $39Goes up Dec 11Sign up ↗
• Sat13Feb

  Running From Yeti - St. Louis, MO

  Sat Feb 13 · 8:05 AM · St. Louis · St. Louis & Inner Suburbs

  5K10K9.3 milesHalf marathon

  from $50Goes up Jan 1Sign up ↗
• Sat13Feb

  The Frozen Stick 5 Mile and Half Marathon Trail Run

  Sat Feb 13 · 9:00 AM · Glencoe · West County & Chesterfield

  5KHalf marathonTrail

  from $49Goes up Dec 25Sign up ↗

• Fall 202627 races
• Spring 202717 races
• Summer 20278 races

Quick answers

How many half marathons are near St. Louis in winter 2026-27?

6 half marathons are listed near St. Louis in winter 2026-27. The first is St. Louis Track Club 2026-2027 Frostbite Series on Saturday, December 12 in Saint Louis, and the last is The Frozen Stick 5 Mile and Half Marathon Trail Run on February 13.

What is the cheapest half marathon near St. Louis in winter 2026-27?

St. Louis Track Club 2026-2027 Frostbite Series on December 12 has the lowest listed entry fee: $20. Prices are before the registration platform's processing fee.

When does the next early-bird price end for half marathons near St. Louis?

Time Travel Half-Marathon/5K/10K - St. Louis: the 5K goes from $36 to $40 after November 9. 5 more of these half marathons publish a later price increase.

Are there half marathons or marathons near St. Louis in winter 2026-27?

Yes: 6 half marathons and 0 marathons. The first is St. Louis Track Club 2026-2027 Frostbite Series on December 12.