Results/Photos

Date: Sept. 27, 2026 Participant: Ian Castaing Vargas #40346 Race: 2026 Boulderthon 5K Distance: 3.1 miles

Strong Middle Mile Powers a Solid 5K Finish Ian Castaing Vargas finished the 2026 Boulderthon 5K in 24:48, an average pace of 8:00 per mile, placing 232nd overall and 175th among menboth within the top 10% of the field. Castaing Vargas opened with a 7:38 first mile before surging to a 6:38 second mile, his fastest of the race, pulling his cumulative pace down to 7:08 per mile at the two-mile mark. The final mile slowed to 9:40, softening his overall average but not his overall standing. That middle-mile burst stands out as the highlight of the race, showing a strong capacity to accelerate mid-race. Given the finish here at altitudeBoulder sits above 5,000 feetmaintaining more of that second-mile rhythm through the close could be a useful focus for future 5Ks.