raceIQ

Running races in Boulder, CO

5 upcoming running races in Boulder, CO, with dates and field depth before you enter.

All races in Colorado Races near me
Most competitive fields

Ranked by how fast the front of the field ran in recent editions, compared with every race we track at that distance.

  1. 1Colleen De Reuck XC ClassicSat, Oct 31Boulder5K Very competitive
  2. 2Alpine Bank Boulder Thanksgiving Day 5KThu, Nov 26Boulder5K Very competitive
  3. 3ColderBOLDERSat, Dec 5Boulder5K Competitive

Which of these could you place in? raceIQ ranks them by where your pace would finish, in your age group and gender.

Find your races

October 2026

November 2026

December 2026

April 2027

June 2027