MLB Power Watch

A lot was made of the increase in homeruns over the first couple weeks of the season. The sample size is still too small to draw any meaningful conclusions from but, for the sake of fun, let's look at where the power currently stands.

**Power in the Last Decade**
	AL ISO	NL ISO
2006*	.171	.177
2005	.157	.152
2004	.163	.160
2003	.160	.156
2002	.160	.151
2001	.161	.164
2000	.168	.166
1999	.165	.161
1998	.160	.148
1997	.158	.147
1996	.168	.146

Well, the Isolated Power is higher than it has been in the last decade, or the Steroid Era. I would imagine this will come down eventually, but offense tends to rise in the hotter months.

Date

Sun 04/23/06, 4:38 pm EST <pageTools></pageTools>

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DNLLegend

1300 days ago

Score 0

What's the formula for ISO? SLG minus BA?

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Bball3345Draft Pick

1300 days ago

Score 1

That is one of the formulas. I used the one that BaseballProspectus uses. ISO = (2B + 3B + HR*3) / AB. Triples are weighted the same as doubles, unlike in SLG, because a triple generally is a sign of speed, not power

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DNLLegend

1300 days ago

Score 0

Makes sense.

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Davis21wylieMVP

1300 days ago

Score 1

That's interesting, especially last year's sudden drop -- steroid testing? ... Also, I wonder how much of the NL's ISO is directly caused by Albert Pujols alone!

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DNLLegend

1300 days ago

Score 0

Last year's drop is rather stark. I wonder if there's a new, designer 'roid out yet.

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