Austin Baron, a Notre Dame student and the founder of Knot Perfect, is using his participation on NBC’s “American Ninja Warrior” to help expand his outreach.

Choi, who lives with earlyonset Parkinson’s, competes on this season of ‘American Ninja Warrior’ alongside his daughter, Karina.

Austin Baron runs a non-profit organization towards raising to end world hunger and to help with his effort, he's competing at the semi-finals of NBC’s American Ninja Warrior.

Austin Baron runs a non-profit to help raise money to end world hunger, and he's highlighting that effort while competing on "American Ninja Warrior." ...

In the comics, Ronin was a little different. Daredevil sent Echo to Japan in disguise as a ninja superhero known as Ronin to watch the Hand clan of ninjas for the New Avengers.

Fans probably noted more than just athleticism when they watched Bob Reese confidently sprint, leap, and occasionally flip across American Ninja Warrior obstacles — they noticed style.

When Allyssa Beird soared through the American Ninja Warrior course, her accomplishments showcased not just speed but also unwavering perseverance.

Season 17 of American Ninja Warrior has been an action-packed competition, and as the Qualifiers conclude on July 7, all eyes are on the Ninjas to see who will round out the Semifinals roster.

For the past three years on "American Ninja Warrior," Mady Howard has fallen on the fifth obstacle of the qualifying course.