Results/Photos

Date: Sept. 27, 2026 Participant: Ryan Castle #26790 Race: 2026 Boulderthon Half Marathon Distance: 13.1 miles

Strong Start Fuels a Top-3% Half Marathon Finish Ryan Castle finished the 2026 Boulderthon Half Marathon in 1:34:16, an average pace of 7:11 per mile, placing 208th overall and 171st among men out of the field of 7,223. Castle's race showed a clear two-phase shape: the first six miles were run at a brisk 6:48 average pace, ranging from 6:33 to 6:57, while miles 7 through 13 settled into a 7:17 to 7:39 per-mile rhythm as he approached the lululemon Power-Up Zone near mile 9.5. That opening six-mile stretch stands as the strongest segment of his race, built on tight, consistent splits. The closing miles held steady in the low 7:30s, a composed finish through downtown Boulder and onto the Pearl Street Mall at over 5,000 feet of elevation. Maintaining more of that early rhythm into the second half could be a useful focus for future races.