Results/Photos

Date: Sept. 27, 2026 Participant: Zakhar Kirillov #40590 Race: 2026 Boulderthon 5K Distance: 3.1 miles

Third Straight Year of Steady 5K Gains Zakhar Kirillov crossed the 2026 Boulderthon 5K line in 31:53, cutting nearly eight minutes off his 2025 time of 36:12 and well ahead of his 2024 mark of 39:41 his fastest showing yet at this race. His pace quickened through the middle of the course, dropping from 10:03 in the opening mile to a strong 9:04 in the second, his best mile of the day, before easing to 11:44 over the closing stretch. That surge lifted his cumulative pace to 9:33 per mile at the two-mile mark before settling to a final 10:17 average. Running at Boulder's altitude of over 5,000 feet, in a city recognized as the Happiest in America, Kirillov's continued improvement year over year stands out as the clearest marker of his progress.