Garrett Greiner Completes 222 L-Sit Muscle-Ups in Under One Hour
The Iowa endurance athlete learned the demanding movement less than two weeks before the attempt, then surpassed the previous world benchmark while honoring a young girl whose courage and faith inspired him. By Atlas Editorial Team 23 July 2026 • Sioux City, Iowa, [USA] Breaking World Record’s Like It’s Easy Garrett Greiner had never completed a single L-Sit muscle up until less than two weeks before he broke the world record. He did not spend months refining the movement.
Jul 23
Iowa Athlete Sets World Record with 2,403 Muscle-Ups in Tribute to Pearl Harbor Victims
After more than five years of preparation and over 150,000 training repetitions, Garrett Greiner completed 2,403 muscle-ups in approximately 18 hours, transforming an extraordinary feat of endurance into a tribute to American sacrifice. By Atlas Editorial Team 1 June 2026 • Keota, Iowa, USA The Arithmetic of Devotion For more than five years, Garrett Greiner pursued a goal that most athletes would never seriously consider. On December 29, 2025, in Keota, Iowa, Greiner compl
Jun 1