Deaf contestant on "american ninja warrior"

I have been watching that show every week, love it. And I got to see the deaf contestant. He didn't make it to the end, but did well nonetheless.
I only watch this show occasionally. This course was really tough. It went from one very grueling upper body task straight into another. Most people hit their exhaustion point on those upper body challenges.
His energy is infectious. I could watch him all day. He looks like he's having so much fun.