He played for the Single-A Lancaster JetHawks from 2003 (first professional season) to 2005 including 26 games for the Double-A El Paso Diablos in 2004.

He hit .346 with 5 home runs in 32 games for the White Sox Triple-A team, the Charlotte Knights, before being recalled by the big league club on July 28, 2007, after second baseman Tadahito Iguchi was traded to the Philadelphia Phillies.

On July 31, 2008, Richar along with pitcher Nick Masset were traded for outfielder Ken Griffey Jr. of the Cincinnati Reds.

He signed a minor league contract with the Florida Marlins on December 21, and spent the 2010 season with their triple-A affiliate, the New Orleans Zephyrs, where he batted .315 in 128 games.

Richar signed with the Kansas City T-Bones of the American Association of Independent Professional Baseball and played for them during the 2014 season.