Mears previously played in MLB for the Detroit Tigers in 2003, and served as a pitching coordinator with the Boston Red Sox.

Mears attended Lord Byng Secondary School in Vancouver, British Columbia, and was a fifth-round selection of the Seattle Mariners in the 1996 Major League Baseball draft.

Mears spent his first nine weeks of big-league service in the Detroit bullpen, pitching fairly effectively and posting five saves.

During his Major League career, Mears appeared in 29 games pitched and worked 411⁄3 innings, allowing 50 hits and 11 bases on balls.

In September 2015, Mears was promoted from being a Midwestern United States area scout to a role as the national pitching cross-checker for the Boston Red Sox.