Tampa Bay Devil Rays

In 1994 Hoover was drafted by the Houston Astros in the 64th round of the MLB draft, however he did not sign. Hoover was drafted by the Tampa Bay Devil Rays in the 23rd round (714th overall) of the 1997 MLB draft, with whom he signed on June 6, 1997. Hoover made his MLB debut on September 8, 2001, as a pinch hitter for Tampa Bay in a game against the Oakland Athletics; he singled to left field in his first MLB plate appearance.^[1] Hoover appeared in three games with Tampa Bay during 2001, and in five games during 2002.

Florida Marlins

Hoover next played in the major leagues in 2006, with the Florida Marlins. From 2006 through 2008, he appeared in a total of 20 games for the Marlins. On September 29, 2007, Hoover broke up a potential no-hitter in the eighth inning with an infield single to spoil a bid by John Maine of the New York Mets.

Philadelphia Phillies

On January 7, 2009, Hoover signed a minor league contract with an invitation to spring training with the Philadelphia Phillies.^[2] He appeared in a total of 12 major league games with the Phillies during 2009–2010. On October 4, 2009, Hoover hit a walk-off RBI single on the final day of the regular season against the Florida Marlins to give the Phillies a 7–6 victory. He was outrighted to Triple-A Lehigh Valley on October 28, 2010.

Boston Red Sox

In February 2011, Hoover signed a minor league contract with the Boston Red Sox,^[3] however he did not play for their organization during the 2011 regular season.

Hoover currently holds the MLB record for most seasons by a non-pitcher with 25 or fewer plate appearances, with six. He shares the record for the most seasons as a rookie, with seven seasons.^[4]