Shaq heads to North Carolina to take on Dale Earnhardt Jr. in a head-to-head race at Concord Speedway. Also: a visit to Washington, D.C., to square off with National Spelling Bee Champion Kavya Shivashankar.

The 7-foot-1, 335-pound NBA star laces on the gloves to challenge 5-foot-9, 150-pound Shane Mosley in an exhibition boxing match in Las Vegas. Also: the big man attempts some hocus-pocus with magicians Penn and Teller. Prior to the fight, Shaq gets tips from trainer Freddie Roach.

Shaq goes shopping with Rachael Ray in New York City, where they pick up ingredients for a burger cook-off. Also: the big man gets help from Dwight Howard, Chris Johnson and DeSean Jackson in a 200-meter relay race against sprinter Tyson Gay in Los Angeles.

Shaquille O’Neal travels to Dana Point, CA to tee off against Charles Barkley on the St. Regis Monarch Beach golf links, then heads to Las Vegas to challenge Nathan’s Famous Hot Dog Eating Champion Joey Chestnut outside Serendipity 3