Aaron Harang significant event Major League Baseball debut
Oakland Athletics
In 2000, Harang was traded with minor leaguer Ryan Cullen to the Oakland Athletics for Randy Velarde. He played with the AA Midland RockHounds in 2001, starting 27 games with a 10–8 record and 4.14 ERA.
Harang made his Major League debut for the Athletics on May 25, 2002, against the Tampa Bay Devil Rays. He pitched seven shutout innings in his debut, with 10 strikeouts, to record the win. He started 15 games for the team that season, and also made 1 relief appearance. He finished 5–4 with a 4.83 ERA. In 2003, he started 6 games, with a 1–3 record and 5.34 ERA.