Results/Photos

Date: Sept. 27, 2026 Participant: Armando Rivera #27376 Race: 2026 Boulderthon Half Marathon Distance: 13.1 miles

Steady Early Pace Anchors a Solid Half-Marathon Finish Armando Rivera completed the 2026 Boulderthon Half Marathon in 1:52:57, averaging 8:37 per mile. His first five miles were his strongest stretch, holding between 8:08 and 8:15 pace and settling into an 8:11 cumulative pace by mile five. From there, splits gradually eased through the back half, with mile 11 marking his slowest split at 9:37, before he closed out with back-to-back 8:57 miles to the finish. Rivera's race unfolded on a course that finishes on the Pearl Street Mall in downtown Boulder, a city sitting above 5,000 feet of elevation. His consistent opening miles reflect strong pacing discipline for the early portion of the race, and there's room to explore maintaining that rhythm deeper into the second half next time out.