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Slugging percentage


When two player have the same or almost the same batting average you might use the slugging percentage (SLG) to determine which player is better:

This percentage is calculated by using the following formula:


SLG = (Total bases)/(Number of official at bats)


Total bases refer to number of bases covered

Home run = 4 bases

Triple = 3 bases

Double = 2 bases

Single = 1 base

The higher the percentage, the better the player.

When the percentage is high, it means that the player has hit the ball farther or better resulting in getting to more bases or home runs

However, a factor that will influence the SLG is the number of outs

The more outs, the lower the SLG

So, a player can maximize the SLG by increasing the number of bases and decreasing the number of outs

When computing this SLG, we usually round decimal answers to three places


Example #1:


During a baseball game, a player had the following performance:

3 home runs

5 triples

12 doubles

20 singles

40 outs

What is the player's slugging percentage?

3 home runs = 3 × 4 = 12 bases.

5 triples = 5 × 3 = 15

12 doubles = 12 × 2 = 24

20 singles = 20 × 1 = 20

Total bases = 12 + 15 + 24 + 20 = 71

Total at bats is found by adding everything shown in bold above

Total at bats = 3 + 5 + 12 + 20 + 40 = 80

SLG = (Total bases)/(Number of official at bats)

SLG = (71)/(80)

SLG = 0.8875

After rounding to three decimals place, we get 0.888


Example #2:


During a baseball game, a player had the following performance:

1 home run

6 triples

14 doubles

25 singles

30 outs

What is the player's SLG?

1 home run = 1 × 4 = 4 bases.

6 triples = 6 × 3 = 18

14 doubles = 14 × 2 = 28

25 singles = 25 × 1 = 25

Total bases = 4 + 18 + 28 + 25 = 75

Total at bats is found by adding everything shown in bold above

Total at bats = 1 + 6 + 14 + 25 + 30 = 76

SLG = (Total bases)/(Number of official at bats)

SLG = (75)/(76)

SLG = 0.98684

After rounding to three decimals place, we get 0.987









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