Austin Seibert is a 19-year old gym manager and firefighter who, thanks to the new age limit, first competed in American Ninja Warrior 10.
American Ninja Warrior 10[]
Seibert first competed in Los Angeles where he made good work of the first four obstacles, but later stumbled on the Doorknob Drop. However, Seibert was able to stay in the top 30, placing 24th overall. He became the youngest city finalist in Los Angeles that season to qualify for the LA finals.
In the Los Angeles finals, he got redemption on the Doorknob Drop. However, he fell on the Salmon Ladder and failed to advance to the national finals. He placed 22nd overall.
American Ninja Warrior 11[]
Seibert returned in Los Angeles for American Ninja Warrior 11. It was revealed that he actually did not get the call to compete, and was rather selected as a walk-on competitor for Los Angeles. He once again made it to the fifth obstacle, failing the Spin Hopper. He advanced to the city finals once again, as he placed 22nd overall. He was one of two LA walk-ons to make the top 30. His run in the Los Angeles finals was cut, but it was revealed that he got revenge on the Salmon Ladder, but then he failed one obstacle later on The Hinge and he once again failed to advance to the national finals.