Running races in Boulder, CO — April 2027

2 races within 25 miles, Thu, Apr 1 – Fri, Apr 30.

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Sun Apr 11 8:00am

Spring Fling Prairie Dog Half, 10k, & 5k

5K10KHalf marathon $39 16.9 mi away

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Sat Apr 24 8:00am

All-Out Beat the Heat

5K10KHalf marathon $35 17.6 mi away

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