1. A player's age is calculated by subtracting his birth year from the season year. The raw data come from the archive at seanlahman.com. This database is copyright 1996-2014 by Sean Lahman. This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. For details see: http://creativecommons.org/licenses/by-sa/3.0/
   
2. Batting, pitching, fielding, personal, team, and awards data come from the archive at seanlahman.com. This database is copyright 1996-2014 by Sean Lahman. This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. For details see: http://creativecommons.org/licenses/by-sa/3.0/
   

Brad Havens of the 1981 Minnesota Twins threw left-handed, was debuting in the majors, played on a losing team, played in Metropolitan Stadium, and was born in Michigan.

• achievement score (-0.7 see References)
• assists (11)
• complete games (1)
• double plays (1)
• games finished (1)
• games played (14)
• games started (12)
• innings pitched (78.0)
• putouts (1)
• saves (0)
• shutouts (1)
• strikeouts (43)
• strikeouts per nine innings (5.0)
• wins (3)
• balks (2)
• earned run average (3.58)
• earned runs (31)
• errors (0)
• hit by pitch (1)
• hits (76)
• hits per nine innings (8.8)
• homers given up (6)
• homers per nine innings (.7)
• intentional walks (4)
• losses (6)
• runs allowed (33)
• walks (24)
• walks per nine innings (2.8)
• wild pitches (1)
• age (22 yrs)
• batters faced (323)
• height (6'1")
• innings pitched per game (5.6)
• weight (180 lbs)

Sources