On August 5, 1980 —  Expos manager Dick Williams wins his 1,000th career game, 11 – 5 over the Mets at Olympic Stadium. He is 3rd in wins among active managers behind Gene Mauch and Earl Weaver. The Expos overcome the offense of Doug Flynn, who ties the modern major-league record with three triples. It was last done in the National League by Ernie Banks, in 1966.

Source:
Baseball Reference August 5
National Pastime
Retro Sheet
Hall of Fame
SABR Games Project
Replay The Game