CREWED
JK

Jack Kuenzle

USA · men · mountain ultra / FKT (20K–100 miles)

b. 1995

About

Jack Kuenzle is an American ultrarunner and FKT specialist who transitioned from cycling to running in 2018 and quickly became one of the most prolific record-setters in the sport, notching more than 20 FKTs since 2019. In 2022 he broke Kilian Jornet's record on the UK's Bob Graham Round, completing the 66-mile, 27,000-foot Lake District loop in 12 hours and 23 minutes. He set FKTs on the Presidential Traverse and, perhaps most remarkably, on Mount Denali (base camp to summit and back) in 10 hours 14 minutes — surpassing the previous record by 90 minutes. Outside Magazine called him one of the most gifted runners on the planet. He is the founder and head coach at Evoke Endurance and has represented the USA at international mountain running championships.

Notable Wins

  • Bob Graham Round FKT 2022
  • Mount Denali FKT
  • Presidential Traverse FKT

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