Ryan Alan Christenson
- Bats Right, Throws Right
- Height 6' 0", Weight 191 lb.
- School Pepperdine University
- High School Apple Valley (CA) High School
- Debut April 20, 1998
- Final Game September 28, 2003
- Born March 28, 1974 in Redlands, CA USA
Ryan Christenson was a bit player for the Oakland A's between 1998 and 2000, routinely playing more than 100 games and gradually phasing into a defensive replacement. He split the ensuing three seasons with four different teams, finishing his career batting .222 in 452 games. In 2013, he returned to the A's organization as a minor league manager, working his way up each the ladder of the chain until joining the big league coaching staff prior to the 2018 season.
Year-by-Year Managerial Record
|2013||Beloit Snappers||Midwest League||77-62||5th||Oakland A's||Lost in 2nd round|
|2014||Stockton Ports||California League||85-55||1st||Oakland A's||Lost in 1st round|
|2015||Midland RockHounds||Texas League||83-57||2nd||Oakland A's||League Champs|
|2016||Midland RockHounds||Texas League||78-62||2nd||Oakland A's||League Champs|
|2017||Nashville Sounds||Pacific Coast League||68-71||8th||Oakland A's|