The Professional Baseball Groundskeepers Association is proud to announce that Bob Christofferson has been selected for induction into the MLB Groundskeepers Hall of Fame. The ceremony will be held November 17 at the PBGA annual meetings in Seattle. Christofferson spent five decades with the Tacoma Rainiers and Seattle Mariners. During his 20 years as head groundskeeper in Tacoma, he was named Pacific Coast League Groundskeeper of the Year in 1994, 1998, and 1999.
In July 2000, he became head groundskeeper for the Seattle Mariners at Safeco Field, where he served for the next 20 years. Along with his precision and dedication to maintaining an outstanding playing surface, the PBGA recognizes Christofferson for his longstanding commitment to the community.
Over the years, he helped raise more than $1.1 million through Mariners groundskeeper fundraisers.
Born in Puyallup, Christofferson attended Stadium High School and Central Washington University. Beyond the field, he was a leading advocate for the sports field management profession throughout the Pacific Northwest and nationally. In 2005, the Sports Turf Managers Association presented him with the Harry Gill Award, the organization’s highest honor at its annual conference.
Christofferson also played a key role in organizing MLB groundskeepers as an annual group and in establishing its Hall of Fame. The inaugural inductees in 2012 were George Toma of the Kansas City Royals and Emil Bossard of the Cleveland Indians.
Roger Bossard of the Chicago White Sox was the most recent inductee, in 2025. Christofferson becomes the Hall of Fame’s 14th member.
Links to stories about Bobby.
