Pawtucket Red Sox MLE

For the past few weeks I have been undergoing a project to convert the Major League Equivalencies of the Pawtucket Red Sox.

To do this I have gathered a database of all players who have played for Pawtucket and then in the major leagues since 1990. I found 48 such players. I compiled all of their numbers from Pawtucket as well as their career stats in the MLB. To adjust for the differences in plate appearances I scaled everything down to the fewer number of PAs (whether that be in Triple-A or MLB) and went from there. After adjusting for PAs I divided the minor league data set by the major league data set and found the factors. After some tinkering I reduced the number of hits, extra base hits, walks, and sac flies by 12%.

Now obviously this method has some flaws. The data is not park of age adjusted and the sample size could be larger. However, when checking my data against the MLEs used by www.minorleaguesplits.com they are very similar.

Here are my MLE conversion factors:

AB	R	H	1B	2B	3B	HR	RBI	SB	CS	BB	K	GDP	HBP	SF
1.016	.812	.857	.845	.898	.988	.820	.816	.688	.815	.748	.074	.865	.656	.966

And here are the numbers for the Pawtucket Red Sox. Their actual AAA numbers are on top and the raw MLEs are below that.

Spreadsheet

I am beginning to work on the pitchers, which I will hopefully have completed by next week.