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Daily Notes: On Spring Run Environments, In Case You Care

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On Spring Run Environments, In Case You Care
In yesterday’s edition of the Notes, the author published the earliest possible returns regarding league averages for spring training this year — both for the two spring leagues as a whole, and for the Florida and Arizona leagues separately.

A curious reader named Dan — who likely possesses multiple graduate degrees and even more lovers — asked how the spring stats so far in 2013 compared to last year’s spring-training numbers. What this post does is provide the answer to that particular question — while, perhaps, asking several more.

Indeed, some very basic work both with copy-and-pasting and Excel’s VLOOKUP function reveals the following (current through Wednesday):


League PA AB AVG OBP SLG BABIP HR% BB% K% R/G
Spring 2013 6505 5779 .281 .353 .442 .323 2.4% 9.2% 17.2% 5.6
Spring 2012 36619 32904 .270 .333 .422 .313 2.4% 7.8% 18.1% 4.8
Florida 2013 3100 2773 .276 .345 .430 .318 2.4% 8.6% 17.5% 5.1
Florida 2012 18002 16162 .261 .325 .401 .302 2.2% 7.9% 18.1% 4.5
Arizona 2013 3405 3006 .286 .359 .452 .327 2.4% 9.7% 16.9% 6.1
Arizona 2012 18617 16742 .279 .340 .442 .323 2.5% 7.7% 18.2% 5.1
MLB 2012 184179 165251 .255 .319 .405 .290 2.7% 8.0% 19.8% 4.3

Despite the fact that the weather has been colder than usual in Phoenix of late, runs have been scored at roughly a 20% higher rate in the Cactus League so far this year than in last year’s iteration of the league. A considerable (i.e. .019) increase in on-base percentage — informed by a higher league BABIP, walk rate, and contact rate — appears to be informing the increase in runs so far.

A less dramatic, but still noticeable, increase in run scoring is present in the Grapefruit League is well — which league is also exhibiting rather high on-base percentages.

Is this normal for the earliest days of spring training? Indeed, that’s precisely the sort of question that a more industrious writer would answer. In the absence of such a specimen, this author will merely suggest that we “monitor” the trend — where “monitor” is a verb designed to deflect all responsibility from the future work the findings here probably demand.

In the meantime, inquisitive readers are encouraged to submit their own theories, such that they might be co-opted, and expanded upon, by the present author in later editions of the Notes.