Results/Photos

Date: Sept. 27, 2026 Participant: Pat Chessare #13384 Race: 2026 Boulderthon Marathon Distance: 26.2 miles

Strong Start Fades Late as Pace Climbs Steadily After Halfway Pat Chessare completed the 2026 Boulderthon Marathon in 4:10:37. He opened briskly, covering the first two miles in under 8 minutes each, and held close to an 8:10 pace through the first half. From mile 18 onward, his per-mile splits steadily lengthened, cresting near 13 minutes per mile between miles 22 and 24 before tightening again to finish strong over the final two miles. The course took Chessare past the lululemon Power-Up Zone near mile 22.5, right as his pace began its steepest climb of the day, a tough stretch to push through before finding another gear for the run into downtown Boulder. His most efficient mile came early, a 7:44 second mile that set the tone before the course and altitude, with Boulder sitting above 5,000 feet caught up with him later on.