10K · Colorado
10Ks in Colorado
Every 10k we track across Colorado, sorted by date. Each card shows deterministic 0–100 scores for beginner-friendliness, PR potential, value, vibe, and family appeal.
10K
Sat, May 16, 2026
Steamboat Springs, Colorado
road
Rolling
65PR40value45vibe
10K
Mon, May 25, 2026
Boulder, Colorado
45K runners
road
Rolling
70PR50value85vibe
music
festive
charity
10K
Sun, Jun 21, 2026
Arvada, Colorado
road
Rolling
65PR40value45vibe
10K
Sun, Sep 6, 2026
Steamboat Springs, Colorado
road
Rolling
65PR40value45vibe
10K
Sun, Sep 13, 2026
Thornton, Colorado
road
Rolling
65PR40value55vibe
scenic
10K
Thu, Nov 26, 2026
Broomfield, Colorado
road
Rolling
65PR50value65vibe
charity
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Top metros in Colorado for 10ks
Cities in Colorado with the most 10k races on the calendar.