Blake Treinen

Blake Treinen
Treinen with the Los Angeles Dodgers in 2025
Los Angeles Dodgers – No. 49
Pitcher
Born: (1988-06-30) June 30, 1988
Wichita, Kansas, U.S.
Bats: Right
Throws: Right
MLB debut
April 12, 2014, for the Washington Nationals
MLB statistics
(through April 11, 2025)
Win–loss record43–35
Earned run average2.78
Strikeouts567
Saves82
Stats at Baseball Reference 
Teams
Career highlights and awards

Blake Michael Treinen (/ˈtrnɛn/, born June 30, 1988) is an American professional baseball pitcher for the Los Angeles Dodgers of Major League Baseball (MLB). He has previously played in MLB for the Washington Nationals and Oakland Athletics. He played college baseball for the Baker Wildcats and the South Dakota State Jackrabbits.

The Athletics selected Treinen in the seventh round of the 2011 MLB draft, though he would make his major league debut with the Nationals in 2014. He returned to the Athletics organization, where he was an All-Star in 2018, and then pitched for the Dodgers, where he was a part of the 2020 and 2024 World Series championship teams.