All-Out Beat the Heat 1M, 5K, 10K, Half Marathon & Marathon

All-Out Beat the Heat 1M, 5K, 10K, Half Marathon & Marathon is a road running event in Westminster, Colorado, on April 24, 2027, organized by All-Out Multipro. The listed formats start in quick succession: the half marathon (13.1 miles) at 7:00 a.m., the 10K (6.2 miles) at 7:30 a.m., and the 5K (3.1 miles) at 7:40 a.m. The event name also refers to a 1-mile and a full marathon, so check the schedule for those options.

Early morning starts and a spring date make this a sensible choice for a PR attempt on the road, whether at 5K, 10K or half marathon. Colorado's Front Range sits well above sea level, so if you are traveling from lower altitude, arrive early or adjust your time goals. A 5K or 10K can be prepared in six to eight weeks with one weekly speed session, while the half marathon rewards 10 to 12 weeks with a long run building to 11 or 12 miles and a few tempo runs at goal pace. The range of distances also makes it a good family event, with the 5K as an easy entry point for newer runners.