Rick Reuschel (#65) was 17-8 with a 2.94 ERA in 32 starts and was the ace of the Giants' staff.
Steve Bedrosian (#8T) was 1-4 with 17 saves and a 2.65 ERA in 40 games in 1989.
Jeff Brantley (#14T) was 7-1 with a 4.07 ERA in 59 games (1 start) for the Giants in 1989.
Terry Mulholland (#41) was 0-0 with a 4.09 ERA in 5 games (1 start) for the Giants in 1989. He didn't pitch until May 25 and then was traded to the Philadelphia Phillies on June 18 with Charlie Hayes and Dennis Cook for Steve Bedrosian and Rick Parker.
Mike Krukow(#125) was 4-3 with a 3.98 ERA in 8 starts in 1989. On June 30 Mike had arthoscopic rotator cuff surgery after spending three seasons going to and from the disabled list with what was thought to be bursitis in his pitching arm. He tried to come back in 1990 but retired during spring training.