5K Races in Boulder, Colorado 2026 — MyNextRace | My Next Race

There are 6 5K races in Boulder, Colorado in 2026. The next is the Lucky Leprechaun 5K on March 15.

Lucky Leprechaun 5K

Sun, Mar 15 · Boulder, CO Boulder

Road Lucky Leprechaun 5K

From $40 Open Closing Soon

2026 Dash & Dine 5k Run Series

Tue, Apr 28 · Boulder, CO Boulder

Road #4 May 19#3 May 12#2 May 5 +2

From $35 Open

Friends of the National Center Science Stride 5K

Fri, May 1 · Boulder, CO Boulder

Virtual 5KVirtual 5K

From $50 Closed

BRR All-Comers Summer Track & Field Series #1

Thu, Jun 11 · Boulder, CO Boulder

Road 3000m100M200M +11

From $0 Open 15 spots left

Pearl Street Mile

Sat, Jun 27 · Boulder, CO Boulder

Road Pearl Street MileKids 800m

From $15 Open

Avery Brewing Co. 4K on the 4th

Sat, Jul 4 · Boulder, CO Boulder

Road Avery Brewing Co. 4K on the 4th

From $40 Open