As a senior in 2002, he earned All-West Coast Conference second-team honors for the second straight season after leading the league with eight saves.

After a brief stint in the Pioneer League, Hull pitched for the Vero Beach Dodgers in 2003 and 2004 before being promoted to the Jacksonville Suns during the 2004 season.

[2] He was briefly promoted to the Major League team in May 2007, but was returned to the 51s a few days later without appearing in a single game.

[citation needed] He made his MLB debut on July 24, 2007, against the Houston Astros, working two scoreless innings in relief.

He became a free agent at the end of the season and signed a minor league contract with the Seattle Mariners in December.