The award is given to the top left-handed pitcher in the major leagues using a formula based on wins, strikeouts and ERA.
The Warren Spahn Board of Directors said Thursday that Gonzalez and Price tied -- with Gonzalez winning the tiebreaker of most wins. Gonzalez's 21 wins were one better than Price, who won the award in 2010.
The award is named for Hall of Fame pitcher Warren Spahn, who holds the big league record for most wins by a left-hander with 363. It is presented by the Bricktown Rotary Club of Oklahoma City and the Jim Thorpe Association.