Increase in-zone swing rate, especially on fastballs in favorable counts
Hittable takes / Expansion guardrailA workshop, not a dashboard.
A directory for experiments and player diagnostics. The index stays navigational; deep strike-zone and percentile work belongs on the player profiles.
Yunior Marte SF
Yunior Marte's production (39) outpaces the tools grade (37) by 2 points. Primary finding: existing splitter is present, but its movement shape does not currently cover the desired arsenal-shape:-armside-drop window. Also flagged: Arsenal Gap: Gloveside Drop; Usage Underuse: Splitter. Most actionable fix: reshape existing splitter to add arsenal shape: armside drop rather than developing a new pitch from scratch.
Swing path and decision map
Geraldo Perdomo's production (90) outpaces the tools grade (81) by 9 points. Primary finding: excellent plate discipline but too passive on hittable pitches — letting strikes go by.
Jack Dreyer
LAD · Arsenal Gap: Armside Drop
Jack Dreyer's tools grade (60) outpaces production (47) by 13 points. Primary diagnosis: no armside drop pitch (changeup/splitter) — platoon vulnerability vs opposite-hand hitters. Secondary signals: Arsenal Shape: Gloveside Sweep; Platoon Vulnerability. High-fixability path: develop a changeup to cover the armside-drop region.
Bubba Chandler
PIT · Stuff-to-Whiff Gap (Command)
Bubba Chandler's tools grade (48) outpaces production (39) by 9 points. Primary diagnosis: existing changeup is present, but its movement shape does not currently cover the desired armside-drop window.. Secondary signals: Arsenal Shape: Gloveside Drop; Usage Underuse: Curveball. High-fixability path: reshape existing changeup to add armside drop rather than developing a new pitch from scratch..
Andrew Sears
DET · Arsenal Shape: Gloveside Sweep
Andrew Sears's tools grade (52) outpaces production (42) by 11 points. Primary diagnosis: existing slider is present, but its movement shape does not currently cover the desired gloveside-sweep window.. Secondary signals: Arsenal Gap: Gloveside Drop; Usage Underuse: Changeup. High-fixability path: increase changeup usage to at least league-average for that pitch type.
Ray Kerr
ATL · Stuff-to-Whiff Gap (Command)
Ray Kerr's production (55) outpaces the tools grade (30) by 26 points. Primary diagnosis: elite stuff tunnels well but pitches land in hittable zones. Secondary signals: Arsenal Gap: Armside Drop; Arsenal Gap: Gloveside Sweep. High-fixability path: develop a changeup to cover the armside-drop region.
Randy Arozarena
SEA · Launch Angle Too Low
Randy Arozarena's tools (86) outpace production (70) by 16 points. Primary finding: expanding the zone too aggressively — generating weak contact and whiffs on pitcher's pitches. Also flagged: Launch Angle Too Low; Contact-Discipline Mismatch. Most actionable fix: elevate bat path to increase average launch angle toward 12-18° range.
Osleivis Basabe
SF · Launch Angle Too Low
Osleivis Basabe's tools (69) outpace production (53) by 16 points. Primary finding: groundball-heavy approach with the raw power to drive the ball — leaving fly-ball damage on the table. Also flagged: Chase Rate Problem; Contact-Discipline Mismatch. Most actionable fix: elevate bat path to increase average launch angle toward 12-18° range.
Corey Seager
TEX · Launch Angle Too Low
Corey Seager's tools (81) outpace production (70) by 11 points. Primary finding: groundball-heavy approach with the raw power to drive the ball — leaving fly-ball damage on the table. Also flagged: Contact-Discipline Mismatch. Most actionable fix: elevate bat path to increase average launch angle toward 12-18° range.
Braden Montgomery
CWS · Power Efficiency Gap
Braden Montgomery's tools (76) outpace production (66) by 10 points. Primary finding: groundball-heavy approach with the raw power to drive the ball — leaving fly-ball damage on the table. Also flagged: Power Efficiency Gap. Most actionable fix: elevate bat path to increase average launch angle toward 12-18° range.
| Pitcher | Pitch mix | Primary diagnosis | Score |
|---|---|---|---|
| Yunior MarteSF | SL 46% FF 37% FS 19% | Arsenal Shape: Arsenal Shape: Armside Drop | 57 |
| Tarik SkubalLAD | FF 49% CH 21% SL 17% SI 11% | No primary gap | 0 |
| Bryce MillerSEA | FF 42% FS 18% SL 18% SI 23% | Stuff-to-Whiff Gap (Command) | 25 |
| Reid DetmersLAA | FF 51% SL 33% CU 12% CH 8% | Arsenal Shape: Arsenal Shape: Armside Drop | 56 |
| Casey MizeSD | SL 27% FF 27% FS 25% SI 28% | Arsenal Gap: Gloveside Drop | 11 |
| Brandon PfaadtAZ | FF 33% SI 17% ST 26% CH 14% | Arsenal Shape: Gloveside Drop | 11 |
| Jacob LopezATH | FF 36% SL 31% FC 17% CH 13% | Arsenal Gap: Gloveside Drop | 50 |
| Hunter BrownHOU | SI 37% FF 26% FC 13% KC 8% | Stuff-to-Whiff Gap (Command) | 28 |
Scenario library, not a fake simulator.
These are saved diagnostic shapes from the current artifact. Slider-based what-if simulation remains parked until a real server-side simulator is wired.
