clock menu more-arrow no yes mobile

Filed under:

What are some other differences in UBR and EqBRR?


See the interactive chart after the jump.

Since my original post on the difference in UBR and EqBRR (without EqSBR), I have decided to go a little deeper into the differences between the two. UBR seems a little more difficult to break apart, but EqBRR is fairly simple. There are five equal additive parts: Ground Advancement, Stolen Bases, Air Advancement, Hit Advancement and Other Advancement. A player is given a total for each of these columns and then these columns are added together to give an EqBRR total.

What I did was find which type of advancement a player was most reliant upon and labeled that as their "type." So if the maximum absolute value of a player lies in the EqGAR column, they are labeled as a "Ground" type. If there are two equal maximum values, they are a "multiple" type.


(View in Wide mode for best results)

If you would like to get a better look at each graph, you can click through the tabs on top. The difference in size in the x-y scatter plot is linked to the difference between the two stats for each player. The difference in size for each of the other three graphs is linked to the number of opportunities of advancement.

You can set the opportunity slide anywhere you want, but the trend remains the same: UBR likes hit advancement players more than EqBRR, while it dislikes ground advancement players much more.

Another final note: Jeff Francoeur has 783 base running opportunities since 2006. His base-running type is "Other." Of course it is.