Aneez Kanji evalutates the IMPACT that a Major League Baseball batter has while at the plate.

Read the original 'Methodology' post to see how the IMPACT STAT is calculated

Friday, March 28, 2008

Run Production: IMPACT STAT vs Batting Average 2007

Since the point of baseball is to score runs, I've taken a look at how the number of runs per team in 2007 measures against the IMPACT STAT and Batting Average.

The following table shows all teams ranked by number of Runs for 2007 (R-Runs).
'R-IMPACT' is the numbered ranking of the Impact Stat.
'R-BA' is the numbered ranking of Batting Average.
'I-BA' is the difference of Impact minus Batting Average.
'R' is total number of Runs Scored in 2007.

- Of the Top 10 run producing teams, 9 are in the Top 10 for Impact Stat, 8 are in the Top 10 for Batting Average. Seattle ranks 3rd for Batting Average, however only 12 for Runs Scored, and 17th for Impact!

- The Top 10 Impact Teams scored an average of 844 runs in 2007, where the Top 10 teams in Batting Average scored 833 runs.

- The average increase from Batting Average to IMPACT was 0.088 (88 points). The Top 10 Teams in Impact had an average of 92 points, while the Bottom 10 had an average of 86 points. This may not seem like a big margin, however, considering that the Top 10 Teams already have a higher batting average, not only are they doing more at the plate with hits, but they are also doing more at the plate with walks, sac flies. etc!

Click the table to enlarge:
You may say, "Batting average and Impact are quite close, so what's the point of all this?". In creating this statistic, I was looking for a way to measure a batter in a team setting. Given the following scenario:

Batter 1: Double
Batter 2: Sacrifice Hit - runner to 3rd
Batter 3: Sacrifice Fly - runner scores
Batter 4: Strike Out

In Scenario 2, Batters 1,2, and 3 would all get 'high-fived' upon returning to he dugout. Batter 2 did just as much to produce the run, as Batters 1 and 3. The IMPACT STAT gives credit for this.


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