The Arizona race began on Monday, May 4 ...

A runner in a 250-mile race that stretches across Arizona has died, organizers of the Cocodona 250 wrote on social media ...

Runner dies during 250-mile ultramarathon race in Arizona - Organizers of the Cocodona 250 said the race would proceed in the ...

The 250-mile event is continuing in the runner’s honor after organizers announced the death Tuesday. This week’s Cocodona 250 ...

A marathon runner has died after suffering a medical emergency during the grueling 250-mile Cocodona 250 in Arizona ...

A runner in a grueling 250-mile ultramarathon on trails across northern Arizona has died after experiencing a medical ...

PRESCOTT, AZ (AZFamily) — Tragedy struck an ultramarathon race in Arizona on Tuesday when one of the runners died southeast ...

An ultramarathon runner is speaking out after setting a new record and winning a 250-mile race in Arizona this week.

Take a group of runners circling a track at unique, constant paces. Answering the question of how many will always end up running alone, no matter their speed, has vexed mathematicians for decades.

Joshua Jackson sprinted past Carson Mello in the final stretch, winning the 26.2-mile race by just two seconds A runner at the 2026 Delaware Running Festival lost first place after celebrating too ...