In Los Angeles‚ Ken Holtzman and the Cubs edge the Dodgers’ Don Sutton‚ 2 – 1. The Cubs will hand Sutton another loss in two days‚ beating him in the nitecap of two‚ 12 – 10, in 10 innings.

On August 12, 1966 — In Los Angeles‚ Ken Holtzman and the Cubs edge the Dodgers’ Don Sutton‚ 2 – 1. The Cubs will hand Sutton another loss in two days‚ beating him in the nitecap of two‚ 12 – 10, in 10 innings.

Source:
Baseball Reference August 12
National Pastime
Retro Sheet
Hall of Fame
SABR Games Project
Replay The Game