| Batting Average (AVG) - Divide the number of base hits by the total number of at bats. Example: If Tony Gwynn has 600 at bats and has 206 hit his batting average would be .343 (206/600). Earned Run Average (ERA) - Multiply the total number or earned runs by nine, and divide the results by the total innings pitched. Example: Randy Johnson has allowed 67 runs in 220 innings. His ERA would be calculated by multiplying 67 by 9: 67 X 9 = 603. Divide 603 by 220 (his innings pitched): 603/220 = 2.74. W - L Percentage - Divide the number of games won by the total number of decisions. Example: Pedro Martinez has a 16-3 record. Divide his win total (16) by his total number of decisions (19): 16/19 = 0.842. Slugging Percentage (SLG) - Divide the total number of bases of all base hits by the total number of times at bat. Example: Sammy Sosa has 228 total bases and 440 at-bats. Divide 282 by 440 to get his slugging percentage: 282/440 = .641. On-Base Percentage (OBP) - Divide the total number of hits plus Bases on Balls plus hits by Pitch BY at Bats plus Bases on Balls plus hit by Pitch plus Sacrifice Flies. Example: In Derek Jeter's 434 at-bats, he has 152 hits, 59 walks, and has been hit by 9 pitches. He's hit 6 sacrifice flies. Formula - (152+59+9)/(434+59+9+6) = 220/508 = .433. Fielding Average - Divide the total number of putouts and assists by the total number of putouts, assists and errors. Example: Edgardo Alfonzo has 218 putouts and 290 assists, while committing only 2 errors. Formula - (218+290)/(218+290+2)= 508/510= .996. |
| Stats 101 |
| Stats 101 |
 |
 |