Jeffrey Adler

Adler began to train at CrossFit in 2015, and had no previous training in competitive sports.^[3] His first world championship bid came at the 2019 CrossFit Games.^[4] He was a finalist at the 2020 CrossFit Games,^[5] where he placed fifth.^[6] He was placed third at the Rogue Invitational in 2021, and again in 2022.^[7][8] At the 2022 CrossFit Games, he was placed fifth.^[9]

In 2023 he was the grand champion of the competition, being named the "Fittest Man on Earth", becoming the first non-American male to win the competition since 2009.^[10] That year he also placed first at the CrossFit Open.^[11]

In 2024, Adler withdrew from the 2024 CrossFit Games following Lazar Dukic's death during Event 1.^[12] Later in the year, Adler won the 2024 Rogue Invitational for the first time.^[13]

In 2025, Adler finished 8th at the CrossFit Games. Soon after, he withdrew from the WFP Tour, citing having to manage a recurring injury as the reason.^[14] Later in the year, Adler became the repeat champion at Rogue Invitational when he won for the second time.^[15]

Adler is engaged to his training partner and coach Caroline Lambray,^[5] with whom he co-founded an affiliated CrossFit gym, CrossFit Wonderland, in Montreal.^[2]