He also coached for USC and started his own company, OnDeckDigital, whose product allows players and scouts to evaluate game play.

Flores played college baseball for the Trojans at the University of Southern California (USC) as a recruited walk-on.

However, injuries in the second half of 2007 began to reduce his effectiveness, and in the summer of 2008, he cleared waivers prior to a demotion to the Memphis Redbirds.

[4] On February 10, 2009, Flores signed a minor league contract with the Colorado Rockies with an invitation to spring training.

[5] He spent most of the season with the Colorado Springs Sky Sox before the Rockies called him up in September when the rosters expanded.

He made the Opening Day roster in 2010 and appeared in 47 games, completing 27+1⁄3 innings with 18 SO and a 2.96 ERA, a record of 2–0, and a 1.28 WHIP.

[7] On February 10, 2011, he signed a minor league contract with the San Diego Padres with an invite to spring training.

[12] He launched his own startup company, OnDeckDigital, which utilizes video capture technology to allow players and scouts to evaluate their game play.

[14] After being credited with the MLB draft selections of Alec Burleson and Jordan Walker, the Cardinals signed Flores to a contract extension in 2022.

[15] Flores' brother, Ron, was also a left-handed relief pitcher who appeared in the major leagues, playing for the Oakland Athletics from 2005–07.