Romy Gonzalez
55 PA · sample confidence ×0.37 · full player page
1 · What changed (2026 vs 2025)
Moving against him
AVG−.121
SLG−.177
xSLG−.135
Fast-swing rate−26.3%
Hard-hit rate−13.5%
wOBA−.089
Avg exit velocity−3.7 mph
Barrel rate−6.3%
xwOBA−.045
Max exit velocity−4.4 mph
Squared-up rate−7.1%
xBA−.041
Bat speed−2.5 mph
Whiff rate+5.5%
Zone contact−3.7%
In his favor / neutral
Pull rate−13.0%
Ground-ball rate+12.3%
Avg launch angle−7.6°
Strikeout rate+7.1%
Opposite-field rate−4.3%
Swing rate−3.6%
Walk rate+2.0%
2 · Why — ranked hypotheses
1. Genuine bat-speed decline (strength, health, or age)
22%Causal path: Strength / conditioning → Bat speed → Contact quality → Expected outcomes
- • Bat speed −2.5 mph vs last season
- • Avg exit velocity −3.7 mph vs last season
- • Max exit velocity −4.4 mph vs last season
- • Hard-hit rate −13.5% vs last season
- • Fast-swing rate −26.3% vs last season
Cannot distinguish strength loss from sub-clinical injury with public data — flag for training staff, do not self-diagnose.
Unexplained / unobserved causes: 78% — confidence is deliberately capped; public data cannot see every layer.
3 · What the coach does tomorrow
Flag to strength and training staff for workload/strength review
Public data cannot separate strength loss, fatigue, or sub-clinical injury — that determination belongs to staff with medical context.
Track bat speed weekly against this baseline
Establishes whether the decline is a trend or a blip before intervening.
Video review, current vs last season, synced at contact
Compare side views at contact point. Public data flags the fingerprint; video confirms or rejects the mechanical story before anything is changed.
Actions follow the top hypothesis; if video review rejects it, fall to the next.
Data gaps
- • Biomechanics (Hawkeye), TrackMan, and Blast Motion are team-internal — the mechanics layer is inferred from its downstream fingerprint, never observed.