Results/Photos

Date: Sept. 27, 2026 Participant: Xuan Vo #42131 Race: 2026 Boulderthon 5K Distance: 3.1 miles

Steady Effort Fades Late in Boulder's Altitude Xuan Vo completed the 2026 Boulderthon 5K in 1:07:26. Her race opened strong with a 19:46 opening mile, then eased to 21:47 for the second mile and 24:02 for the third, a gradual slowdown across the distance that shaped her final pace of 21:45 per mile. That opening mile stands out as the strongest stretch of her race, run more than two minutes faster than her closing mile. Boulder's elevation, sitting above 5,000 feet, adds context to the effort required to hold pace across a 5K at altitude. Vo has room to build a more even pacing strategy in future starts, holding closer to that opening rhythm through the final mile to close out with more consistency.