Just watched the vid.
Dude is way better than 90% of people who compete on Ninja Warrior.
The problem is that sometimes it's so hard that no one wins. 
Well only two guys have won and Nagano is the only one who has won it anytime recently since it became so ridiculously hard.
These guys are incredible athletes. Many gold medal winning Olympians have tried and failed to win ninja warrior.
The last American that G4 sent made it further than any of the Japanese guys, so we are going to be a force in the years to come.
