The Grandmaster Ultras: Ultramarathons Made for Grandmaster-Age Athletes – iRunFar

Beiyi Zheng and Daniel Wilson wanted an ultra where grandmaster-age athletes could finish before the cutoff — so they made their own.

Ultras or Eating Competitions: Eating for Ultramarathons – iRunFar

Grandmaster Ultras - 100 Mile, 100k, 50 Mile, 50k - UR Ultra

Ultras or Eating Competitions: Eating for Ultramarathons – iRunFar

Underrated Ultra Performances: North Americans Who Dominate – iRunFar

Grandmaster Ultras - 100 Mile, 100k, 50 Mile, 50k - UR Ultra

Grandmaster Ultras - 100 Mile, 100k, 50 Mile, 50k - UR Ultra

Squirrel's Nut Butter SA

Grandmaster Ultras: Apologies to the Youngsters - Ultra Running Magazine

Grandmaster Ultras - 100 Mile, 100k, 50 Mile, 50k - UR Ultra

Introducing the Age-Old Runners Series Version 2.0! – iRunFar

Grandmaster Ultras - February 11, 2023

Annapolis Trail Runners

Grandmaster Ultras - 100 Mile, 100k, 50 Mile, 50k - UR Ultra