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Winter trail races near Denver (2026-27)

Updated October 17, 2026

5 trail races are on the calendar near Denver in winter 2026-27, starting with Sawmill Trail Runs on Saturday, December 5 in Pine. That covers December to February. 5 of them publish an upcoming price increase, so signing up early saves money.

All winter races5K races (34)10K races (21)Half marathons (18)Trail races (5)

• Sat5Dec

  Sawmill Trail Runs

  Sat Dec 5 · 8:00 AM · Pine · Foothills & Mountains

  8.08 miles16.14 milesTrail

  from $80Goes up Nov 17
• Sat5Dec

  All-Out Fa La La

  Sat Dec 5 · 9:00 AM · Westminster · Denver Suburbs

  5K10KHalf marathonTrail

  from $50Goes up Nov 22
• Fri1Jan

  Resolute Runner 5k

  Fri Jan 1 · 10:00 AM · Arvada · Denver Suburbs

  5KTrail

  from $44Goes up Dec 1
• Sat9Jan

  All-Out Polar Prowl

  Sat Jan 9 · 9:00 AM · Arvada · Denver Suburbs

  5K10KHalf marathonTrail

  from $50Goes up Dec 27
• Sat6Feb

  All-Out Mardi Crawl

  Sat Feb 6 · 9:00 AM · Arvada · Denver Suburbs

  5K10KHalf marathonTrail

  from $45Goes up Nov 7

• Fall 202653 races
• Spring 202729 races
• Summer 202726 races

Quick answers

How many trail races are near Denver in winter 2026-27?

5 trail races are listed near Denver in winter 2026-27. The first is Sawmill Trail Runs on Saturday, December 5 in Pine, and the last is All-Out Mardi Crawl on February 6.

What is the cheapest trail race near Denver in winter 2026-27?

Resolute Runner 5k on January 1 has the lowest listed entry fee: $44. Prices are before the registration platform's processing fee.

When does the next early-bird price end for trail races near Denver?

All-Out Mardi Crawl: the Half marathon goes from $75 to $85 after November 7. 4 more of these trail races publish a later price increase.

Are there half marathons or marathons near Denver in winter 2026-27?

Yes: 3 half marathons and 0 marathons. The first is All-Out Fa La La on December 5.