Results/Photos

Date: Sept. 27, 2026 Participant: Angel Alaniz #30752 Race: 2026 Boulderthon 10K Distance: 6.2 miles

Steady Negative Split Powers a Strong 10K Finish Angel Alaniz completed the 2026 Boulderthon 10K in 1:00:41, an average pace of 9:47 per mile. After opening in 10:34 for the first mile, he settled into a rhythm, trimming his cumulative pace every mile through the finish. His strongest mile-plus stretch came between miles 3 and 5, where he covered two miles in 9:39 and 9:33, pulling his overall pace down from 10:01 to 9:50 per mile. That steady tightening of pace over the back half of the race shows solid pacing discipline, with each mile split faster than the last through mile 5. Racing at Boulder's altitude of over 5,000 feet, holding that kind of negative-split shape is a strong sign of well-managed effort across the distance.