A Graphical Look at Philly’s Infield Defense
The 2020 Philadelphia Phillies were bad at defense. Bam, there’s the story. Print it. Talk to you again tomorrow.
Oh, you want more than that? A reasonable request — this is FanGraphs, after all. Fine, then. The Phillies allowed a .342 BABIP last year, the highest mark in baseball and one of the highest marks ever. Some of that is due to the short season — it’s easier to be extreme in fewer observations — but some of it was because their defenders were inept at turning batted balls into outs.
What went wrong? For one thing, the Phillies played below-average defenders at most infield spots. We’ll exclude catcher, of course, because that’s a different kind of defense, but the tough defense extended across the diamond. Alec Bohm is a first baseman playing third. He’s not there for his defense, but with Rhys Hoskins at first, the Phillies got his bat into the lineup by any means necessary.
Next to Bohm on the diamond, Didi Gregorius is similarly defensively stretched. He played an acceptable shortstop earlier in his career, but he’s now on the wrong side of 30 and trending downwards. Both DRS and Statcast’s OAA think that he’s been one of the worst shortstop defenders in baseball over the past two years (UZR thinks he’s acceptable).
At second base, Jean Segura is the lone Philadelphia defender who you could consider overqualified for the position. He was a below-average defender at shortstop, but he’s adapted well to playing second base. All three defensive systems saw him as an above-average defender at second. He’s the only defender (other than Realmuto) on the entire team where that was the case in 2020.
Unfortunately, Segura was forced to cover a lot of ground, because he was flanked by two range-deficient defenders. We’ve already covered Gregorius, but Rhys Hoskins manages to show that first base defense isn’t completely meaningless. He’s one of the worst defenders there by every metric, and it’s not just scoops or stretches or any of those things you expect first basemen to fail at. He simply has no range whatsoever; he combines below-average top end speed with DH-esque burst; it’s not apples to apples, but his home-to-first time is about the same as J.D. Martinez and Nelson Cruz’s. Read the rest of this entry »

Jay Jaffe