Results/Photos

Date: Sept. 27, 2026 Participant: Braiam E Castillo Barrales #40127 Race: 2026 Boulderthon 5K Distance: 3.1 miles

Strong Start Fades Late in the 5K Braiam E Castillo Barrales completed the 2026 Boulderthon 5K in 28:12, an overall pace of 9:05 per mile. His race went out fast, with a 7:57 opening mile, before easing to an 8:31 second mile and a 10:42 close, giving the effort a clear front-loaded shape. That opening mile stands as his strongest stretch of the day, a pace he wasn't able to sustain as the race wore on. Running the distance at Boulder's altitude, over 5,000 feet, adds context to that early tempo. With no prior Boulderthon results on record for comparison, this outing offers a first benchmark. A useful, low-pressure goal for next time: settle into a slightly more even pace between miles one and two to preserve more strength for the closing mile.