The Rockies defeat the Cubs, 14 – 5, despite three successive home runs by Sammy Sosa. Winning pitcher Mike Hampton ties the National League record for home runs in a season by a pitcher by hitting his 7th. The major-league record is 9.

On August 9, 2001 — The Rockies defeat the Cubs, 14 – 5, despite three successive home runs by Sammy Sosa. Winning pitcher Mike Hampton ties the National League record for home runs in a season by a pitcher by hitting his 7th. The major-league record is 9.

Source:
Baseball Reference August 9
National Pastime
Retro Sheet
Hall of Fame
SABR Games Project
Replay The Game