1929 World Series

AL Philadelphia Athletics (4) vs. NL Chicago Cubs (1) This was the first World Series game ever played at Wrigley Field.

In mid-September, with both league pennant races wrapped up, Mack had Ehmke leave the team and go on the road to scout the NL champion Cubs for the last few weeks of the season, telling him to be prepared to start game 1 of the World Series.

However, with his knowledge of the Cubs' batters and a rested arm, Ehmke pitched a complete game, winning 3–1 with no earned runs allowed and 13 strikeouts.

Guy Bush won this game for the Cubs' only victory, holding the Athletics to one run despite allowing nine hits and two walks.

Sticking to his right-handed-pitchers-only policy, Mack again made a risky move in Game 4 by starting 46-year-old Jack Quinn.

Unlike Ehmke, however, Quinn was no challenge to the Cubs' hitters, who scored seven runs off him before Mack pulled him in the sixth inning.

[12] Mack gave Ehmke his second start of the Series, but without the advantage of surprise, he was less effective, touched for two runs, and taken out in the fourth inning.