 His best year was 1939 when he went 20–13 and had 10 complete games in 269-2/3 innings pitched.Hamlin's 20 wins was 4th best in the National League, his WHIP was 1.146 (3rd in the NL), and he also finished #10 in the National League Most Valuable Player voting in 1939.He had another strong year in 1940 with a 3.06 earned run average for an Adjusted ERA+ of 131 (4th best in the NL).