Anthony DeSclafani has recorded the highest WAR for all pitchers in September. That’s kind of a big deal. You may recall DeSclafani cruised through the first month of the season, recording a 1.04 ERA across his first 26 innings, but the rest of the season wasn’t quite as kind to him.
A 4.15 xFIP at the time pointed to some good fortune. Indeed, luck caught up to DeSclafani, as he posted ERAs and xFIPs north of 4 for the next three months.
Suddenly, recently, something clicked. Or that’s how it seemed. I noticed some interesting changes to DeSclafani’s pitch arsenal. I found it interesting, and I thought Eno Sarris, being the resident pitch expert, would find it interesting, too.
Turns out Eno was concurrently transcribing his interview with DeSclafani when I contacted him. This isn’t the first time we simultaneously wrote about a particular pitcher throwing a particular pitch; click here and here for our May 20 analysis of Rubby de la Rosa’s improved slider.
You can read Eno’s interview transcript, along with his typically insightful commentary, here. In it, he discusses with DeSclafani how the pitcher’s curveball could replace his change-up as his third pitch. In a preseason preview of DeSclafani, Eno had presciently remarked upon the importance of a substantial third pitch:
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