Eric "Mr. Core" Small is a personal celebrity trainer from Hollywood, California.
He first competed in Los Angeles in American Ninja Warrior 10. He had a notable run as he brought American singer and actress Jordin Sparks to see his run. However, his run was over in seconds, as he failed the first obstacle, the Floating Steps.
He returned in Tacoma, where his run was cut, but he improved upon his last season by one obstacle. He couldn't complete the Lunatic Ledges.