Pierce Johnson, One Pitch Man
Pierce Johnson wasn’t the highest-profile addition the Padres made before the 2020 season. Johnson, a right-handed pitcher who began his career in the Cubs minor league system as a starter, transitioned to relieving and then transitioned to Hanshin in the NPB, where he delivered a standout 2019 season. Along with fellow offseason acquisitions Drew Pomeranz and Emilio Pagán, he was part of a reworked bullpen for a newly-aggressive contender.
Johnson’s 2020 went fairly well, aside from the whole global-pandemic-changing-the-entire-world part. He started throwing harder during his sojourn to Japan, and held that new velocity upon his return. His blend of roughly 50/50 fastballs and curves played quite well; he put up a 33.8% strikeout rate en route to 20 innings of 2.70 ERA, 3.14 FIP relief.
In truth, Johnson’s fastball was just a palate cleanser for his devastating curve. He used it early in counts and when he got behind, but threw nearly 75% curveballs in key spots — 1-0, 0-1, and 1-1 counts, as well as when he reached two strikes. It’s easy to see why when you look at the curveball’s merits. Among pitchers who threw at least 150 curves last year, it was one of the best in the game:
Player | Pitches | SwStr% | Whiff/Swing |
---|---|---|---|
Shane Bieber | 325 | 25.8% | 51.5% |
Drew Smyly | 176 | 23.3% | 50.0% |
Aaron Nola | 306 | 22.5% | 41.8% |
Pierce Johnson | 168 | 22.0% | 48.1% |
Germán Márquez | 311 | 21.9% | 43.3% |
Aaron Civale | 254 | 20.5% | 39.4% |
Tyler Glasnow | 335 | 20.0% | 52.8% |
Tyler Duffey | 188 | 19.7% | 41.6% |
Jesús Luzardo | 214 | 19.6% | 45.7% |
Framber Valdez | 351 | 19.1% | 41.9% |
That’s excellent company, to state the obvious. It’s not as though the pitch is a wipeout breaker that only excels when he bounces it, either. In obvious strike-throwing counts (2-0, 2-1, 3-0, and 3-1) since returning from Japan, Johnson has hit the strike zone with his curveball 58.6% of the time. That’s higher than his fastball zone rate in the same counts (42.1%) and higher than the overall league zone rate for all pitches in those counts (56.9%).
Read the rest of this entry »