Results/Photos

Date: Sept. 27, 2026 Participant: Jackson Williams #12968 Race: 2026 Boulderthon Marathon Distance: 26.2 miles

Strong Start Through Halfway, Grinding Finish Seals the Marathon Jackson Williams completed the 2026 Boulderthon Marathon in 4:18:37. He moved efficiently through the opening miles, clicking off sub-9:00 splits through mile 9, and reached the halfway point in roughly 1:55:53 having banked significant time against his eventual average pace. Miles 1 through 13 were his most consistent, hovering near 9:00 per mile with a strong 7:51 split at mile 13. The back half told a different story, as pace gradually eased from the 9:20s into the 10:00-13:00 range across miles 21 through 24, before settling in for the final two miles. Notably, mile 24 fell right around the lululemon Power-Up Zone near mile 22.5, a stretch where many runners look for a boost late in the marathon. Given Boulder's elevation above 5,000 feet, holding a steady front half like this is a solid foundation; a touch more even pacing over the closing miles could be a worthwhile focus for next time.