His only postseason experience was when he helped the Pirates capture the 1979 World Series Championship. Despite not getting a decision in any of his three starts, he pitched effectively with a 2.08 ERA and 15 strikeouts in innings. In the 3–2 victory over the Cincinnati Reds in Game 2 of the National League Championship Series at Riverfront Stadium, he pitched seven innings and left the game with a 2–1 lead. He went innings and departed Game 4 of the Fall Classic with a 6–3 advantage in the 9–6 loss to the Baltimore Orioles at Three Rivers Stadium. When the Pirates clinched the series with a 4–1 win in Game 7 at Memorial Stadium, he lasted four innings, with his only mistake being Rich Dauer's home run to lead off the Orioles' third.