Who was the orioles first 20 game winner?

Answer 1

The 1971 Baltimore Orioles had four 20-game winners: Jim Palmer, Dave McNally, Mike Cuellar and Pat Dobson.

Answer 2

In 1971 the four pitchers were:

Jim Palmer

Dave McNally

Mike Cuellar

Pat Dobson

Answer 3

The 1971 Orioles are the last Major League Baseball club to have four 20-game winners in a season: Jim Palmer, Dave McNally, Mike Cuellar, and Pat Dobson

Answer 4

Mike Boddicker who went 20-11 in 1984.