5K Races in Castle Rock, Colorado 2026 — MyNextRace

There are 3 5K races in Castle Rock, Colorado in 2026. The next is the 6th Annual July 4th ROCK-IT RUN on July 4.

Sat, Jul 4 · Castle Rock, CO Castle Rock

Road 5kHalf Marathon

From $43 Open Closing Soon

Sat, Jul 18 · Castle Rock, CO Castle Rock

Road 5k10kHalf Marathon

From $25 Open

Sun, Sep 20 · Castle Rock, CO Castle Rock

7th ANNUAL PAUL'S MYSTERY SHIP WALK TO END ALS

From $45 Open

5K Races in Castle Rock, Colorado