Boulder Sunrise 10K and 5K

Lace up your shoes for the Boulder Sunrise 10K and 5K on June 28, 2026, a highly anticipated event known for its breathtaking scenery and fast, flat courses. Hosted at the iconic Boulder Reservoir in Boulder, Colorado, this race offers runners a truly picturesque experience as they traverse an out-and-back route across the reservoir dam. The course is celebrated for its stunning views and reputation as one of the most scenic in the region, providing an ideal setting for both personal bests and an enjoyable morning run.

Both the 10K and 5K distances are designed to be swift and flat, making them perfect for runners aiming for speed or those simply looking to soak in the beauty of Boulder. Typical race day conditions in late June bring comfortable lows around 55°F, with highs averaging 88°F and a low 7% chance of precipitation, creating a pleasant environment for an early summer run. Runners will find ample support along the USATF-sanctioned course, with the 5K offering multiple aid stations and the 10K featuring even more opportunities to refuel with water and Gatorade at approximately every mile.

As a "Zero Waste Event" organized by BBSC Endurance Sports, the Boulder Sunrise Run emphasizes environmental responsibility. Beyond the race, participants can enjoy a lively post-race party complete with music, food, and awards. This event, held in conjunction with the Boulder Sunrise Triathlon, promises a vibrant atmosphere and a memorable experience, topped off with a participant shirt and a coveted finisher medal.