He played 15 seasons in Major League Baseball (MLB) from 1990 to 2004 for the Kansas City Royals, New York Mets, Oakland Athletics, San Francisco Giants, Colorado Rockies, Arizona Diamondbacks, and Los Angeles Dodgers.

Mayne, the Rockies' regular catcher, was unable to swing a bat due to a sprained left wrist and had missed the previous four games.

"[4] He pitched one inning, surrendering no runs with a fastball that topped out at 83 miles per hour.

Colorado won the game in the bottom of the 12th inning when rookie Adam Melhuse, pinch-hitting for Mayne, singled with the bases loaded and two outs.

Mayne thus became the first position player pitcher to be credited with a win since Rocky Colavito in 1968, and the last to do so until Wilson Valdez in 2011.