The Baseball Development Hub Podcast
The single-elite-pitch era is closing out. Hitters caught up. Flatter swings, simpler load patterns, machine prep against any movement profile, and the discipline to ride out their front side mean a 70-grade four-seamer alone doesn't survive third time through the order anymore. The new edge is repertoire.Trevor and Dan break down why pitching development has shifted toward stacking multiple fastballs at the same velocity. Zach Wheeler throws three. Paul Skenes throws three. Cam Schlittler, Peyton Tolle, Davis Martin, Christopher Sanchez — all riding multi-fastball mixes that defeat the single-pitch sit. The conversation moves through tunneling, weak contact and stolen strikes as the new market inefficiencies, why Stuff+ models miss repertoire interaction, and Corbin Burns as the canonical case study where a "below-average" sinker existed to make a 120-grade cutter play. Chapters 00:00 — Open / Mother's Day intro 01:53 — The multi-fastball trend: Soriano, Schlittler, Joe Ryan, Peyton Tolle 02:22 — The Zach Wheeler model: why hitters caught up, and the Trajekt machine 03:58 — Mizorowski as the velocity outlier 04:58 — Christopher Sanchez: when even an elite pitch starts getting hunted 07:22 — Corbin Burns: cutter as the engine, sinker as the steal 12:46 — The two missed market inefficiencies: weak contact and stolen strikes 16:48 — Peyton Tolley: adding a C-grade sinker to make a 70-grade four-seamer play 21:54 — Davis Martin: 60% fastball, three variations, nothing graded above average, sub-2 ERA 23:19 — Joey Volcheck and Georgia: the trend reaching college baseball 24:40 — IPitch / Trajekt: how hitter prep changed the math 32:17 — Multi-fastball relievers: Vodnik, Mejia, Perkins 41:22 — The Stuff+ blind spot: how do you grade repertoire interaction? 51:00 — Closing thoughts
106 episodios
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