Grace Houston is a 12-year-old arm wrestling phenomenon. — -- Grace Houston is a 12-year-old arm wrestling phenomenon. She started arm wrestling three years ago after expressing interest in the ...

It’s the 19-year-old Giant Slayer, taking on the toughest arm wrestling challenges! Watch this rising star face off with bigger opponents and show why age is no barrier to success.

What happens when you challenge Santa Claus to an arm wrestling match at Muscle Beach? You get a chance to win mystery gifts worth up to $3,000! But as the challenges get tougher, so do the prizes.