1940 – The Indians move two games in front by besting the Tigers again, 6 – 5. Cleveland will win their next two games to go up by 3.

On August 13, 1940 — 1940 – The Indians move two games in front by besting the Tigers again, 6 – 5. Cleveland will win their next two games to go up by 3.

Source:
Baseball Reference August 13
National Pastime
Retro Sheet
Hall of Fame
SABR Games Project
Replay The Game