The summer of 2015 brought Sizemore to Whitman and the staff of head coach Brian Kitamura. Sizemore will handle the program's pitching staff.
Sizemore joins the Missionaries as one of the most experienced and decorated coaches to don a Whitman uniform.
Sizemore returned to coaching in 1989 as the pitching coach for Saugus High School. During his 3 years at Saugus under Doug Worley, he had the opportunity to work with Roger Salkeld, Seattle’s number one pick (3rd overall) in the ’89 MLB draft.
Sizemore moved to Hart High School in 1992 as an assistant coach for the legendary coach Bud Murray. During his tenure at Hart, he was offered the head coaching job at Thousand Oaks High School. While at Thousand Oaks he coached Jack Wilson, an All Star short stop and former second basement for the Seattle Mariners. The Lancers won a Marmonte League Championship and made four post-season appearances, reaching the state quarterfinals in 2000. Following the 2000 season, Sizemore was hired as the pitching coach at Moorpark College, where he worked for 2 years.
Coach Sizemore has also worked in professional baseball for 20 years. Starting as an Associate Scout for Seattle in 1990, he was hired as a minor league pitching coach for the Mariners in 1992. After his stint with the M’s, he worked for Major League Baseball as a pitching coach for the Lethbridge Mounties in the Pioneer League, followed by a 7-year assignment as a minor league pitching coach with the Florida Marlins. After working in player development, Sizemore moved into scouting with the Marlins for 4 years, and was then hired by the Pittsburgh Pirates as a part-time scout in Southern California.
During his 8 years of scouting, Sizemore spent his summers working as the pitching coach for the Rockville Express and the Bethesda Big Train in the Cal Ripken Collegiate League. The Big Train won a National Championship in 2011, ranked number one for all summer college teams by Perfect Game. While in the Ripken League, Sizemore worked with future Major League pitchers Joe Smith (Angels), Justin DeFratus (Phillies), Cody Allen (Indians) and Matt Bowman.
After retiring from teaching in 2013, Sizemore was hired as the pitching coach at Bethany College, in Bethany, West Virginia, where he worked with the future Hall of Fame coach Rick Carver, who has the more victories in school history, as the dean of the Bison.
Sizemore played baseball and graduated from Cal State Stanislaus in 1977 with a Bachelor of Arts Degree in Physical Education. He was a member of two National Championship teams in 1976 and 1977, was an All District 8 pitcher in 1976 and holds the school record for career winning percentage.Â
