1. Player heights and weights have a single value for their entire career. The 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/
   

Bobby Mathews of the 1886 Philadelphia Athletics threw right-handed, played on a losing team, played in Jefferson Street Grounds, and was born in Maryland.

• achievement score (.800 see References)
• assists (38)
• complete games (22)
• double plays (3)
• games finished (0)
• games played (24)
• games started (24)
• innings pitched (197.7)
• putouts (5)
• saves (0)
• shutouts (0)
• strikeouts (93)
• strikeouts per nine innings (4.2)
• winning percentage (59.1%)
• wins (13)
• balks (0)
• earned run average (3.96)
• earned runs (87)
• errors (9)
• hit by pitch (13)
• hits (226)
• hits per nine innings (10.3)
• homers given up (3)
• homers per nine innings (.1)
• losses (9)
• runs allowed (148)
• walks (53)
• walks per nine innings (2.4)
• wild pitches (20)
• age (35 yrs)
• batters faced (913)
• height (5'5")
• innings pitched per game (8.2)
• weight (140 lbs)

Sources