849K views · 720 reactions | In a race this close, it's anyone's game to win. The first round of the playoffs begins on an all-new American Ninja Warrior: Ninja Vs. Ninja, TONIGHT at 11/10c on USA Network. | Ninja Warrior | Facebook

657 reactions · 85 shares | Ninja veteran Karsten Williams goes up against world-renowned gymnast Jonathan Horton TONIGHT. American Ninja Warrior: Ninja Vs. Ninja. 9/8c. USA Network. | Ninja Warrior | Facebook

1.4M views · 179 shares | Karsten Williams is straight up powering through this course! | Ninja Warrior | Facebook

Throwing it back to last year's edition of American Ninja Warrior USA vs. The World! It was an honor to run on Stage 3 alongside some of the top competitors in the sport. Be sure to tune in to NBC tonight at 7pm to catch this year's show, wishing Team USA and all the international competitors best of luck! | Josh Levin

44K views · 244 reactions | If you missed last week's premiere, you have another chance to watch the Ninjas run! American Ninja Warrior: Ninja vs. Ninja starts at 7/6c on USA Network. | Ninja Warrior | Facebook

144 reactions · 7 comments | What do you get when you put some of the most famous ninjas in one place? One EPIC competition. American Ninja Warrior: Ninja Vs. Ninja is all-new Thursdays at 9/8c on USA Network. | Ninja Warrior | Facebook

27M views · 10K reactions | Speed is the name of the game for this Ninja alum! | Ninja Warrior | Facebook

19M views · 2.6K reactions | Barclay Stockett is a force to be reckoned with! Will Team USA take the win SUNDAY on NBC? | Ninja Warrior | Facebook