Results/Photos

Date: Sept. 27, 2026 Participant: Jonah Williams #13316 Race: 2026 Boulderthon Marathon Distance: 26.2 miles

Strong Start Fades Into a Long Closing Stretch Jonah Williams covered the marathon in 5:03:00, an 11:33 min/mile pace. His race opened briskly: the first five miles clicked by at roughly 8:19-8:22 min/mile, a pace he could not sustain across the rest of the distance. From there, cumulative pace steadily climbed mile by mile, settling into the 12-14 min/mile range through the middle miles and stretching further into the 16 min/mile range around miles 21-23, before firming back toward 11-12 min/mile pace to the finish. That opening five-mile stretch stands as the clear highlight of the day, run at a pace nearly three minutes faster per mile than his eventual overall average. Given that Boulder sits above 5,000 feet, holding that early rhythm before the second half wore him down is worth noting. Looking ahead, working on evening out effort across the middle miles could help him carry more of that early speed toward the finish.