John Costello, baseball player, 1988-1991

John Costello

Born: 12/24/1960 in Bronx, NY, USA

MLB Debut: 1988-06-02 | Final Game: 1991-10-05

Bats: R | Throws: R | Height: 6'1" | Weight: 190 lbs

Full name: John Reilly Costello

Biography

John Costello was a professional baseball pitcher born in 1960, who played in Major League Baseball from 1988 until 1991. Over the course of his career, he recorded an impressive win-loss record of 11-6 and maintained a commendable earned run average (ERA) of 2.97. Known for his effective pitching style, Costello struck out 104 batters and secured 4 saves, showcasing his versatility on the mound. Costello's playing years coincided with a transformative period in baseball, marked by the increasing emphasis on specialized roles within pitching staffs, which allowed him to carve out a niche as a reliable reliever and starting pitcher. His contributions to the teams he played for were significant, particularly in an era when pitchers faced increasing competition and the evolution of offensive strategies in the game. After his retirement on October 5, 1991, Costello left a lasting impact on the teams he represented, remembered for his competitive spirit and skill on the field.

Career Pitching Statistics

W L G GS CG SHO SV IP H ER HR BB SO ERA Pitcher PIV
11 6 119 0 0 0 4 157.7 141 52 13 64 104 2.97 0

Career ERA 2.97 vs. league average 3.80 across their career seasons — 22.0% better than league average.

Season-by-Season Pitching

Career Batting Statistics

G AB R H 2B 3B HR RBI SB BB SO AVG OBP SLG OPS PIV
119 12 0 0 0 0 0 0 0 0 9 0.000 0.000 0.000 0.000 0.0

Career AVG .000 vs. league average .255 across their career seasons — 100.0% below league average.

Career OBP .000 vs. league average .321 across their career seasons — 100.0% below league average.

Career SLG .000 vs. league average .381 across their career seasons — 100.0% below league average.

Career OPS 0.000 vs. league average 0.702 across their career seasons — 100.0% below league average.

Season-by-Season Batting

Fielding Statistics

Career Fielding Totals by Position

Position G GS PO A E DP
P 119 0 6 12 0 0

Season-by-Season Fielding

Career Games by Position

Position Games
Pitcher 119

Salary History

Year Team League Salary
1990 SLN NL $105,000
1989 SLN NL $85,000
Total Career Earnings $190,000

College History

School Name City State Years Attended
Mercyhurst College Erie PA 1980, 1981, 1982, 1983