Results/Photos

Date: Sept. 27, 2026 Participant: Jimmy Souverein #32706 Race: 2026 Boulderthon 10K Distance: 6.2 miles

Steady Early Miles, Late Fade Closes the 10K Jimmy Souverein finished the 2026 Boulderthon 10K in 1:03:27, an overall pace of 10:14 per mile. His second mile was the fastest stretch of the race at 9:35, and he held a tight band between 9:50 and 10:10 through the first five miles, keeping his cumulative pace right around 10:00. The closing mile slowed to an 11:20 split, pushing his overall pace from 9:59 at mile five to 10:12 at the finish. The race finished on the Pearl Street Mall in downtown Boulder, a city that sits above 5,000 feet of elevation, worth noting for a Denver-based runner. Given the strength of that second mile, working to sustain that early rhythm deeper into the race could be a useful focus for his next 10K.