In Chicago, Billy Southworth leads the Braves to a 13 – 5 scalping of the Cubs by belting three doubles and home run. Mule Watson coasts to the win over Percy Jones.

On August 4, 1921 — In Chicago, Billy Southworth leads the Braves to a 13 – 5 scalping of the Cubs by belting three doubles and home run. Mule Watson coasts to the win over Percy Jones.

Source:
Baseball Reference August 4
National Pastime
Retro Sheet
Hall of Fame
SABR Games Project
Replay The Game