Two hundred ultrarunners will leave Black Canyon City at 5am local time on Monday morning for the sixth running of the Cocodona 250, the Aravaipa Running event that has become the flagship of the early-summer 200-mile calendar. The 253.3-mile route climbs through the Bradshaw Mountains, drops into Sedona's red-rock corridor, then turns north through Mingus Mountain and the San Francisco Peaks before finishing on Heritage Square in downtown Flagstaff later in the week. Race officials expect lead runners on the line by Wednesday, with a six-day cut-off pulling the back of the field in by Saturday.
The men's race lines up around four-time finisher and 2023 champion Michael McKnight, who has built his year around a return to the Arizona course after stepping away last spring to chase the Triple Crown of 200s. Max Jolliffe, the 2024 Moab 240 winner who added an Angeles Crest 100 victory and a top-five finish at Mammoth 200 inside twelve months, joins him with the lowest cumulative time among the favourites on paper. Jeff Browning, last year's runner-up, brings the deepest local knowledge of any contender, while Jeff Garmire — the field's most experienced Cocodona runner — is back for a sixth start with three top-ten finishes already on his record.
Courtney Dauwalter heads a women's field that may be the strongest in the race's short history. Dauwalter is back for redemption after a curtailed run last year and arrives off a winter spent rebuilding from the foot injury that ended her 2025 Hardrock attempt. Manuela Vilaseca, the new Triple Crown of 200s record holder and 2024 Cocodona runner-up, is the form pick, with Mika Thewes returning for a fourth start that includes podium finishes in 2023 and 2024. Lauren Jones and Allison Powell complete a top five that comfortably outranks any women's start list ever assembled at the distance.
The course remains the same brutal proposition that has produced wide finish times since the inaugural 2021 edition. Runners climb more than 40,000 feet in cumulative gain across thirteen aid stations and three sleep stations, with the hottest forecast since 2022 raising the prospect of slower mid-race splits through the desert section between Cottonwood and Sedona. Race organisers have added a fourth medical checkpoint at Mingus Mountain and extended cut-offs by 90 minutes at the Walnut Canyon aid station to reduce the back-of-pack attrition that thinned last year's field below a 50 per cent finish rate.
Coverage from the start arch will run continuously on Aravaipa's livestream from 4:30am Monday, with on-course updates anchored from Cottonwood, Mingus and Snowbowl through the duration of the race. The 250 sits inside a four-event Cocodona programme that also takes in 100-mile, 100-kilometre and marathon distances over the same long weekend, sharing a finish line and turning Heritage Square into a 110-hour rolling celebration. By the time the last 250-mile finisher crosses the line, more than 700 runners across the four events will have come through the same arch.