March 28, 1974 |
|April 20, 1998, for the Oakland Athletics|
|Last MLB appearance|
|September 28, 2003, for the Texas Rangers|
|Runs batted in||102|
As a player
As a manager
He played six seasons in Major League Baseball with the Oakland Athletics (1998–2001), was traded to the Arizona Diamondbacks for the second half of the 2001 season, and played one season each with the Milwaukee Brewers (2002) and the Texas Rangers (2003). After his playing career ended, he began managing in the Oakland Athletics' farm system.
Christenson attended college at Pepperdine University and was drafted by the Oakland Athletics in the 10th round of the 1995 Major League Baseball draft. He played in his first professional season that year for the Class A Short Season Southern Oregon A's. In 1996, he played for Southern Oregon and the Class A West Michigan Whitecaps. In 1997, he advanced to the Class A-Advanced Visalia Oaks, Double-A Huntsville Stars, and Triple-A Edmonton Trappers. He began the 1998 season at Triple-A, but was called up to the Athletics and made his major league debut on April 20. Christenson started out the 1999 season in Oakland, but was sent to the Triple-A Vancouver Canadians for a month after going 3–9 at the plate. He returned to the big league club in late May. He spent the entire 2000 season with the A's. He played seven games at the start of the 2001 season with Oakland before being sent to the Triple-A Sacramento River Cats.
On June 19, 2001, Christenson was traded to the Arizona Diamondbacks for Rob Ryan. He played four games with Arizona, but was then optioned to the Triple-A Tucson Sidewinders. He was recalled to the majors at the September roster expansion.
The Milwaukee Brewers selected Christenson in the 2001 Rule 5 draft. He played the majority of the 2002 season in the minors, mostly with the Triple-A Indianapolis Indians, but also a few with the Rookie Arizona League Brewers. He was recalled by Milwaukee in September and played the rest of the season with them. He was released after the season.
Having signed as a free agent with the Texas Rangers for the 2003 season, Christenson split the year between the Rangers and their Triple-A Oklahoma RedHawks. He was granted free agency at the season's end.
Christenson signed a minor league contract with the Florida Marlins for 2004. He played the entire season with the Triple-A Albuquerque Isotopes. This was his last season playing professional baseball. In all, he played in 452 major league games in his career, with 222 hits in 998 at-bats (a .222 batting average). He had 16 home runs, 16 stolen bases, and 102 RBI.
After retiring from playing, Christenson began managing in the Oakland Athletics' minor league farm system in 2013. In his first year, he managed the Class A Beloit Snappers of the Midwest League. In 2014, he was manager of the Class A-Advanced Stockton Ports of the California League. He served as manager of the Double-A Midland RockHounds of the Texas League in the 2015 and 2016 seasons. He led the RockHounds to win back-to-back league championships in his two seasons, and was selected as the Texas League Manager of the Year in 2016. In 2017, he managed the Triple-A Nashville Sounds of the Pacific Coast League.
- "A's Announce 2013 Snappers Field Staff". milb.com. February 20, 2013. Retrieved July 19, 2013.
- "Ports Announce 2014 Field Staff". milb.com. November 12, 2013.
- Hards, Bob (December 2, 2014). "Changing of the guard - Ryan Christenson named RockHounds 2015 field manager". MiLB.com. Retrieved July 24, 2015.
- "Sounds Announce 2017 Coaching Staff". Nashville Sounds. Minor League Baseball. November 15, 2016. Retrieved November 15, 2016.