Minnesota’s Dean Chance throws a perfect no-hitter for five innings against the Red Sox before the game is called. Chance wins, 2 – 0.

On August 6, 1967 — Minnesota’s Dean Chance throws a perfect no-hitter for five innings against the Red Sox before the game is called. Chance wins, 2 – 0.

Source:
Baseball Reference August 6
National Pastime
Retro Sheet
Hall of Fame
SABR Games Project
Replay The Game