American League 2007 Pitching Analysis

9 Pitching Winning Earned Run Opposition Unearned Walks to Strike
Rank PLAYER TEAM PER Percentage Average On Base Ave Run Average Out Ratio
1 C.C. Sabathia CLE 79.03 73.08 3.21 0.276 0.30 0.18
2 Josh Beckett BOS 78.70 74.07 3.27 0.276 0.13 0.21
3 Johan Santana MIN 78.56 53.57 3.33 0.263 0.29 0.22
4 Erik Bedard BAL 78.45 72.22 3.16 0.266 0.10 0.26
5 John Lackey LAA 78.34 67.86 3.01 0.287 0.48 0.29
6 Dan Haren OAK 78.14 62.50 3.07 0.287 0.61 0.29
7 Fausto Carmona CLE 77.34 70.37 3.06 0.287 0.21 0.45
8 James Shields TAM 77.26 60.00 3.85 0.270 0.25 0.20
9 Javier Vazquez CHW 77.14 65.22 3.74 0.275 0.21 0.23
10 Kelvim Escobar LAA 76.28 72.00 3.40 0.297 0.23 0.41
11 Justin Verlander DET 76.05 75.00 3.66 0.291 0.27 0.37
12 Roy Halladay TOR 75.98 69.57 3.71 0.293 0.32 0.35
13 Joe Blanton OAK 75.94 58.33 3.95 0.289 0.20 0.29
14 Scott Kazmir TAM 75.92 59.09 3.48 0.315 0.48 0.37
15 Mark Buehrle CHW 75.91 52.63 3.63 0.296 0.22 0.39
16 Gil Meche KAN 75.54 40.91 3.67 0.302 0.42 0.40
17 Jeremy Guthrie BAL 75.44 58.33 3.70 0.287 0.31 0.38
18 A.J. Burnett TOR 75.26 55.56 3.75 0.284 0.27 0.38
19 Felix Hernandez SEA 75.07 66.67 3.92 0.315 0.24 0.32
20 Chien-Ming Wang NYY 74.66 73.08 3.70 0.301 0.09 0.57

PER Analysis of the All-Time Greatest Hitters in MLB History

PER Analysis of the All-Time Greatest Pitchers in MLB History

PER Hitting Analysis of the 2008 AL Season

PER Pitching Analysis of the 2008 AL Season

Revolutionary Baseball Pitching Efficiency Rating
This analysis determines the best pitchers in baseball irrespective of their pitching roles. The construct evaluates the statistics of ERA, Opposition On base Average, and Walks to Strike Out ratio.

Earned Runs Average is widely understood to be one of the most important statistics used to evaluate a pitcher. It shows how many earned runs a pitcher yields for every 9 innings pitched. Alongside the ERA PER Sports includes a statistic called UnERA which measures the number of unearned runs given up by a pitcher per 9 innings. It shows how well a pitcher can pitch around mistakes and therefore partially indicates the mental fabric of the pitcher.

Opposition On Base Average is a very important statistic (almost as important as the ERA) since it indicates the number of base-runners a pitcher allows per inning pitched. This is a more comprehensive measure than Opposition Batting Average since pitchers who are wild and walk or hit a lot of batters will not be accurately captured in the Opposition Batting Average stat.

Walks to Strike-Out Average is a measure of the level of dominance and control exhibited by the pitcher. High Strikeouts reflect pitching dominance and low walk totals speak to impressive control.

This statistic ignores all decision statistics (i.e. winning percentage, save percentage, or hold percentage) since winning percentage for eg. depends a lot on the amount of run support a pitcher receives (which is itself a function of his opposing pitcher on the mound). As such it may not be a true reflection of their pitching performance. Likewise, the save percentage does not take into account the quality of saves by that closer, i.e. giving up only one or zero runs per save opportunity.

In addition, in order to minimize the bias that generally occurs with pitching too few innings, the statistic adjusts for pitchers with more Innings Pitched. This measure is therefore an efficient method of determining the annual Cy Young Award winner.

Interpreting the PER Baseball Score
 Since a value of 100 represents the ceiling on a pitcher's rating (and that for a truly perfect pitcher, i.e. the score for a perfectly pitched game) then the following rating guide applies:
 Between 90 and 100 indicates a truly Legendary
Pitcher/Performance
 Between 85 and 90 indicates an Excellent Pitcher
 Between 75 and 85 indicates a Superior Pitcher
 Between 65 and 75 indicates an Average Pitching
Performance
 Between 60 and 65 indicates a Below Average
Performance
 Below 60 indicates a Poor Pitching Performance
Read more of the PER Hitting Analysis...

Read more of the PER Pitching analysis...