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Running Calendar near University 2025-2026

Explore the top running races near University for 2025-2026! We've gathered 130 exciting races in the area. Check out our detailed list below to find your next local race.

April 2026
Apr
26
Sunday

Unicorn 5k

2 mi 5 km
May 2026
May
2
Saturday

Niwot's Challenge

Trail Run 24 mi 50 mi 100 mi
May
10
Sunday

Colorado Women's Classic

5 km 10 km 16 km
May
15-17
Fr - Su

Denver Colfax Marathon

5 km 10 mi 13 mi 26 mi
May
30
Saturday

North Fork 50 Mile

Trail Run 50 km 50 mi
June 2026
Jun
7
Sunday

Flamingo Day 5K

5 km
Jun
13
Saturday

Ironman 70.3 Boulder

Triathlon
Jun
13
Saturday

All-Out Summer Breeze

5 km 10 km 21 km
Jun
20
Saturday

Unicorn 5k - Thornton

5 km
Jun
21
Sunday

Father's Day Classic 10k

5 km 10 km
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