The Myth of Luis Arraez

“One of the best hitters in baseball – last three years, batting titles with three different teams.” That’s the first thing viewers heard about Luis Arraez this postseason, a quote from the bottom of the first inning of the Padres-Braves Wild Card series. Arraez singled and promptly scored on a Fernando Tatis Jr. home run. It was just how you’d draw it up, and San Diego won a 4-0 laugher. That’s the promise of Arraez – a near-automatic baserunner completely immune to strikeout pitching.
“He’s a tough dude to face… He could set the tone just like Ohtani could set the tone for their respective clubs.” That one comes from the last game Arraez played this postseason, as he was mired in a deep slump. After that first single, he went 2-for-8 with two more singles the rest of the Atlanta series. Then he went a desultory 4-for-22 (all singles) in the NLDS against Dodgers. He fulfilled plenty of the Arraez-ian promise we expect – just one strikeout in 31 plate appearances – but he simply couldn’t buy a hit.
It’s hard to learn much from a down series like that. Obviously, Arraez wasn’t contributing to the Padres offense – no one contributes when they post a 27 wRC+. But hidden in that statement is an unstated counterfactual: When Arraez goes, it is implied, the Padres go. His single-hitting prowess is the straw that stirs the drink for a fantastic offense that ranked eighth in the majors in runs scored this year despite playing in one of the toughest offensive environments out there.
There’s just one problem with that statement: It’s not true. Arraez didn’t stir the drink for the Padres this year, even as he cruised to his third straight batting title. That sounds crazy, but it’s true. There’s just something about that shiny batting average that messes with our ability to evaluate players. Read the rest of this entry »