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]
Garrett Greiner L-Sit Muscle-Ups Garrett Greiner L-Sit Muscle-Ups Garrett Greiner L-Sit Muscle-Ups
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. There was no elaborate training cycle built specifically around it. What he did have was more than eight years of preparation for another kind of punishment: the muscle-up endurance training that had already carried him through a previous World Record achievement.
Garrett Greiner is the world record holder for most muscle ups in 24 hours (as certified by Atlas World Records).
Greiner added another world record under his belt by completing 222 L-Sit muscle ups in 1 hour.
There is something interesting about an L-sit muscle-up.
A standard muscle-up already asks the body to pull itself from beneath a bar, cross the uncertain border above it and finish supported on locked arms. The L-sit version adds another demand: the legs must remain extended in front of the body at a 90 degree angle, forcing the abdomen, hips and lower back to maintain order while the rest of the body holds on for dear life.
The body remembers work. It stores suffering in the shoulders, grip and nervous system. Greiner discovered that the years he had invested in one record had quietly prepared him for another.
On 9 July 2026, at a public workout park in Sioux City, Iowa, he did what had never been done before; which is something that appears to be in Mr. Greiner’s nature.
The Meaning of 222
The number was never arbitrary.
Greiner chose 222 in memory of the daughter of close friends, a young woman who passed away from cancer. Her resilience, he said, and the strength of her Christian faith even in the face of death left a permanent impression on him.
To Greiner, the attempt became more than a question of athletic capacity. It became an expression of belief: that grief does not disappear, but it can be carried; that even the darkest experience can be given meaning; and that faith can persist when the mountain appears to be collapsing and beauty can rise up from the destruction.
He continued through the hour in repeated bursts, returning to the bar again and again. Each repetition demanded the same sequence: legs fully extended at a 90 degree angle two, body elevated, torso carried above the bar, arms pressing into support.
The existing benchmark stood at 201 repetitions.
Greiner passed it at approximately the 50-minute point.
At almost that exact moment, a man he had never met walked over and asked him for advice on how to perform muscle-ups. Greiner was trying to control his breathing and protect the final minutes of the attempt.
He asked the stranger to come back in 10 minutes because he was attempting a world record. The man asked what the record was.
“Two hundred,” Greiner began, before correcting himself. He had already reached approximately 204.
The world record had changed in the middle of the conversation.
The Last Repetition
The active performance lasted 56 minutes and 10 seconds.
Greiner had entered the attempt with a precise destination. Once he reached 222, he stopped. There was time remaining on the clock, but the number had already fulfilled its purpose.
Atlas World Records conducted three independent reviews of the continuous video evidence. The final count confirmed 222 completed L-sit muscle-ups, exceeding the previous published benchmark of 201 by 21 repetitions.
Athletic records are usually reduced to numbers. Distance. Weight. Time. Repetitions.
But numbers sometimes carry names that do not appear on the certificate.
For Greiner, 222 represented faith, memory and the refusal to surrender when suffering becomes heavy. The record belongs to the athlete, but its meaning reaches beyond the man on the bar.
Certified by Atlas World Records on 13 July 2026