Get ready to kick off your spring racing season with the vibrant Shamrock Run 5K in Billings, MT, on Sunday, March 15, 2026. This beloved annual event transforms the streets around Pioneer Park into a festive and community-focused course. Runners will experience a chip-timed, USATF Certified 5K with a modest 74 feet of elevation gain, offering a balanced challenge that allows for a strong pace through its looped terrain. Typical race day conditions in mid-March often bring crisp air, with lows around 25°F and highs around 51°F, and only a 4% chance of precipitation, making for invigorating running weather.

The Shamrock Run is more than just a race; it's a cherished Billings tradition that celebrates St. Patrick's Day and brings the community together for a fun, active experience. What truly sets this event apart is its lively atmosphere, complete with closed-off streets for the 5K, a free Kids 1 Mile Fun Run for the younger participants, and a festive post-race celebration. Participants can look forward to finish area refreshments, and adults can enjoy a beer garden (with a two-beer limit and ID required). Your participation also supports the Billings running community by contributing to youth running programs and local trail maintenance.

For those looking to earn some hardware, awards are presented to the top three finishers across 5-year age groups. All 5K entrants receive a commemorative T-shirt if registered by the February 16 deadline. The race starts and finishes conveniently near Pioneer Park, with ample parking available at the Senior High parking lot and surrounding residential streets, though 3rd Ave and Parkhill Dr are restricted. Join fellow runners for a spirited start to spring and a memorable St. Patrick's Day celebration!