Blue Heron Half & 5K

Lace up your shoes for the Blue Heron Half & 5K on Sunday, April 26, 2026, an inviting race experience set amidst the picturesque Riverdale Regional Park in Brighton, CO. Both the Half Marathon and 5K courses are renowned for being flat and fast, making them ideal for those chasing a personal record. Runners will trace the gently flowing waters of the South Platte River, enjoying scenic views, local wildlife, and intriguing sculptures along the way. The 5K course is a balanced mix of paved and smooth dirt sections, while the Half Marathon features approximately 3.5 miles of smooth dirt, incorporating loops around Mann-Nyholt and Valente Lakes before a slight downhill return to the finish.

Participants can expect excellent support with three strategically placed aid stations along the Half Marathon route, ensuring multiple opportunities for hydration and refueling at various mile markers. Typical race day conditions in late April offer pleasant running weather, with historical highs around 63°F and lows near 35°F, and a low 9% chance of precipitation. Beyond the scenic and swift courses, every racer receives a fantastic 50% discount on a one-year membership to the Rocky Mountain Road Runners (RMRR) club, unlocking access to free monthly races and local running store discounts.

The Blue Heron Half & 5K promises a vibrant atmosphere for all abilities, from seasoned half marathoners to casual 5K participants. Finishers are celebrated with high-tech running socks or similar swag, finisher medals or glasses, and a hearty pancake breakfast. With its beautiful setting, flat course, and welcoming community spirit, this event offers an unforgettable spring racing opportunity in Adams County.