 He made his major league debut on September 14, 1942, in a road game against the New York Giants at the Polo Grounds.He pitched two scoreless innings of relief in the 6–1 loss.Shuman's career totals include 30 games pitched, all in relief, a 0–0 record with 19 games finished, 25 earned runs allowed in 50 innings, and an ERA of 4.44.