Another Sign Batting Average Is Becoming Obsolete
One of the great batting lines of the first half was Yasmani Grandal’s .189/.388/.436 slash. Unfortunately, as has been the case for many a hitter on the White Sox, his return to action in ‘21 is in doubt after he underwent surgery to repair a knee ligament. I won’t wax poetic on Grandal; Devan Fink did a great job covering his early-season batting line. But it’s becoming more common to see a hitter with an average that starts with a “1” these days. The common reference to a batting average under .200 is the “Mendoza Line,” which our Ashley MacLennon made a strong case for ditching as a reference earlier this season. I, on the other hand, am going to make the case for why it’s become irrelevant.
Batting average, the prevailing measure of a hitter’s success for most of baseball’s existence, has faded into the background, yet the rate at which a hitter successfully reaches base via a hit is still usually the first statistic reported. Grandal’s batting average is not good, but the selection of .200 as a cutoff point is arbitrary; after all, a batting average of .214 is also not good. What most baseball fans understand now is that because all base hits are not equal in value, batting average is limited in what it says about a hitter. But there is a stigma attached to a poor batting average, which is probably why the Mendoza Line has stuck.
Let’s rewind to last year’s shortened campaign. There was a lot of speculation going into a 60-game season as to whether or not a player would be able to hit .400. That didn’t happen, though Charlie Blackmon was hitting .500 after a couple weeks. We did end up with a handful of qualified hitters with an average below .200 — seven such, to be exact:
| Name | Tm | PA | AVG | wOBA | wRC+ |
|---|---|---|---|---|---|
| Max Muncy | LAD | 248 | 0.192 | 0.316 | 100 |
| Joey Gallo | TEX | 226 | 0.181 | 0.297 | 86 |
| Matt Olson | OAK | 245 | 0.195 | 0.316 | 103 |
| Kyle Schwarber | CHC | 224 | 0.188 | 0.307 | 91 |
| Bryan Reynolds | PIT | 208 | 0.189 | 0.278 | 72 |
| Evan White | SEA | 202 | 0.176 | 0.261 | 66 |
| Yoshi Tsutsugo | TBR | 185 | 0.197 | 0.309 | 98 |
This is by far the highest number of qualified hitters with a batting average below .200 for a single season. It is totally a product of the short season, though. None of the hitters on the list above are contact hitters, but their true bat-to-ball skills are probably better than what they showed in ‘20. When the sample is small, there is a greater chance that you get some outliers in your results.