Jonathan Siegrist

Jonathan Siegrist
Siegrist in Utah, 2021
Personal information
NicknameJ-Star[3]
Born (1985-08-27) August 27, 1985 (age 39)[5]
Madison, Wisconsin, U.S.[5]
EducationNaropa University (BSc.)[4]
OccupationProfessional rock climber
Height167 cm (5 ft 6 in)[5]
Websitewww.jonathansiegrist.com/p/about.html
Climbing career
Type of climber
Highest grade
Known forProlific +5.15-grade sport climber.[1][2]
First ascents
  • All You Can Eat (5.15a, 2019)
  • One Hundred Proof (5.15a, 2020)
  • Nu World (5.15a/b, 2020)
  • Full Metal Brisket (5.15a, 2020)
  • Close Encounters (5.15a, 2022)
  • Event Horizon (5.15b, 2022)
Updated on 18 July, 2023

Jonathan Siegrist (born 27 August, 1985) is an American rock climber who is regarded as one of the world's most prolific extreme sport climbers, and who has redpointed, and made numerous first free ascents, of a large number of sport climbing routes at and above the grade of 9a (5.14d).[1] Siegrist's breadth of experience at the world's most extreme sport climbing grades, means that he is often looked to for guidance regarding the grading of extreme sport routes in America.[1] While principally known as a sport climber, he has repeated some of the world's hardest traditional climbing routes.[6]

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  4. ^ Cite error: The named reference CL4 was invoked but never defined (see the help page).
  5. ^ a b c "About Jonathan Siegrist". JonathanSiegrist.com. Retrieved 18 July 2023.
  6. ^ Cite error: The named reference GR9 was invoked but never defined (see the help page).