Voting has concluded in this first-round matchup, but check out the results of all the matchups in ESPN.com's Action Sports Star bracket.
Here's the final tally in this matchup: Shaun White: 2,410 votes; Ken Block: 2,309 votes.
Shaun White
Age: 25
Country: United States
Sports: Snowboarding, skateboarding
Credits: Six-time Winter X SuperPipe gold medalist, five-time Winter X Slopestyle gold medalist, two-time X Games Skateboard Vert gold medalist, 2010 Olympic gold medalist in halfpipe.
Ken Block
Age: 44
Country: United States
Sports: Rally driving
Credits: Notched a second (2007) and two thirds ('06 and '08) in rally car racing at the X Games, finished second overall in Rally America in '06 and '08, and his "Gymkhana" viral videos keep racking up millions of views.
Click here to view results in the next matchup, Nyjah Huston versus Danny Way.