ESPN.com box score question

[Regular Joe]

At the very end of the boxscores obtained from espn.com, there's a little notation saying "Game scores". It lists the starting pitchers with a number after their name (see examle below).
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WP - D Davis, R Biddle
IBB - W Cordero (By D Davis)
Batters faced - C Vargas 23; S Stewart 3; T Tucker 2; J Eischen 1; R Biddle 4; D Davis 24; S Service 7; J Acevedo 3; C Politte 4
Ground Balls-Fly Balls - C Vargas 6-8; S Stewart 2-1; T Tucker 1-0; J Eischen 0-0; R Biddle 3-0; D Davis 8-4; S Service 2-1; J Acevedo 3-0; C Politte 1-1
Umpires: HP - Mike Everitt, 1B - Hunter Wendelstedt, 2B - Larry Young, 3B - Jim Wolf
Time: 3:00
Att: 33,334
Weather: 70 degrees, cloudy
Wind: 8 mph
Game Scores: C Vargas 60, D Davis 33



Does anybody know what this number means or how it's derived??


Thanks!
"Joe"

 

[IE]

Game Score. Start with 50 points. Add 1 point for each out recorded, (3 points per inning). Add 2 points for each inning completed after the 4th. Add 1 point for each strikeout. Subtract 2 points for each hit allowed. Subtract 4 points for each earned run allowed. Subtract 2 points for each unearned run allowed. Subtract 1 point for each walk.

 

[Regular Joe]

Thanks, I.E. I appreciate the explanation.


"Joe"