STL @ PHI
Home plate: Erich Bacchus
“Quietly excellent. The best umpiring is the kind you forget was there.”
What this shows — how Erich Bacchus called the 187 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 181 right. Below, only his misses are plotted, alongside every pitch the ABS (Automated Ball-Strike System) reviewed on a challenge.
The zone, as he called it
The calls that moved the game
- 1-0.13▲2 · 1-0 ball called strike
Bryan Torres vs Jesús Luzardo - 2-0.10▼10 · 0-1 ball called strike
Luis Arraez vs Luis Gastelum - 3-0.09▼7 · 0-0 ball called strike
Luis Arraez vs Justin Bruihl
Run impact from the count run-value table: a missed strike three is worth far more than one on 3-0.
ABS — the Automated Ball-Strike System
2 pitches went to the robots · 0 overturned (ump overruled) · 2 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.
- 1Bryson Stott — ump said strike, robot ruled strike: upheld.
- 2Alec Bohm — ump said strike, robot ruled strike: upheld.
Our tracked-rulebook zone matched the ABS ruling on 2 of 2 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.