When is ShamROCK Stampede?

ShamROCK Stampede takes place on Mar 14, 2026. That's in 2 weeks.

Where is ShamROCK Stampede located?

ShamROCK Stampede is held in Castle Rock, Colorado, United States.

What distances are available at ShamROCK Stampede?

ShamROCK Stampede offers the following distances: 10K, 5K.

What is the typical weather for ShamROCK Stampede?

Based on historical data, you can expect temperatures between 27°F and 54°F on race day. There's approximately a 5% chance of precipitation.

ShamROCK Stampede (5K-10K) - Mar 14, 2026 | Castle Rock, CO

Lace up your running shoes and embrace the spirit of St. Paddy's Day at the ShamROCK Stampede in scenic Castle Rock, Colorado, on Saturday, March 14, 2026. This vibrant event offers runners of all abilities a choice between a challenging 10K, which proudly serves as the RRCA Colorado State Championship Race, or a fun 5K. Little leprechauns can also join the excitement with a free 1K Kid's Sham-Scram, making it a perfect outing for the entire family.

The ShamROCK Stampede takes runners through a course described as a "Trail" with "Some Hills," promising an engaging experience with varied terrain and elevation. Participants can expect typical race day conditions with historical highs around 54°F and lows near 27°F, alongside a minimal 5% chance of precipitation, providing crisp air ideal for running. Beyond the race itself, this event is a full-fledged Irish-themed festival, featuring a lively Celtic Sham-JAM with live music, a Back to Health Expo, and complimentary post-race treats including free beer or spirits for those 21 and over, and bagels.

What truly sets the ShamROCK Stampede apart is its heartfelt mission: all proceeds benefit organizations such as the It's A Calling Foundation and Live Free Association, dedicated to supporting veterans and first responders in their battle against PTSD and mental illness. Held at the Douglas County Events Center, the race offers a community-focused atmosphere where every step helps change lives. Join hundreds of fellow runners in celebrating fitness, community, and a noble cause.