Ubaldo Jiménez was dealt to the Colorado Rockies on July 31, 2011, in exchange for Drew Pomeranz, Alex White, Joe Gardner, and Matt McBride.
On September 11, 2011, he made his Major League debut by starting and pitching five scoreless innings in a win over the Cincinnati Reds. In his four September 2011 outings, he went 0–2 with a 5.40 ERA in victories.
After the first month of the season, Pomeranz’s innings pitched per start dropped below five because of his 75-pitch restriction. Pomeranz’s first career home run came on May 7th, 2012.
Despite a 2–9 record in 22 starts for the Rockies in 2012, Pomeranz split the season between AAA and the Rockies rotation. Only eight games and four starts would be played by Pomeranz for the Rockies in the 2013 season.
On December 10, 2013, Pomeranz and Chris Jensen were dealt to the Oakland Athletics in exchange for Brett Anderson, a pitcher with the team.
As a member of the A’s bullpen, Pomeranz started the year with a record of 1–1 with a 1.98 ERA in 13.2 innings, but he was promoted into the starting rotation to replace the struggling Dan Straily on May 9th.
 It wasn’t until Pomeranz’s fourth start on May 25 that he allowed a run in the rotation, giving Oakland three shutout starts in a row until
How Tall Is Drew Pomeranz?
Drew Pomeranz is 1.96 m tall.