KOTC 23: Sin City was an event held on May 16, 2003 at the Orleans Hotel Casino in Las Vegas, Nevada, United States.
Eric Pele
Dan Christison
Dan Severn
Cory Timmerman
Jeremy Horn
Vernon White
Ronald Jhun
Shonie Carter
Joe Stevenson
Thomas Denny
Art Santore
Joe Crilly
Diego Sanchez
Michael Guymon
Bryan Pardoe
Brent Stevens
Bobby Gamboa
Dave Rivas