Brown was a pitcher who had the rare talent of relying both on movement and velocity. His main pitch was a sinking fastball that averaged 91–96 mph, with tremendous tailing, downward movement. He could spot it to either side of the plate. Batters facing him generally pounded this pitch into the ground or missed it entirely. He complemented this pitch with a sharp slider in the high 80s, and a solid split fingered fastball he used against left-handed hitters or for another look.
Over his career, Brown won 211 games and finished his career with a 127 ERA+ (27% better than the league-wide earned run average). Only seven pitchers have won between 200 and 220 wins with an ERA+ between 120 and 135. Of those seven, Stan Coveleski (215 wins, 128 ERA+), John Smoltz (213/125), Don Drysdale (209/121), and Hal Newhouser (207/130) are in the Baseball Hall of Fame, and Curt Schilling is a probable future inductee. Only Eddie Cicotte (209/123) of Black Sox infamy has been excluded.