HOU @ BOS
Home plate: Erich Bacchus
“The zone kept to itself — the hitters said thanks.”
What this shows — how Erich Bacchus called the 153 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 140 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+0.69▼3 · 3-2 strike called ball
Jarren Duran vs Spencer Arrighetti - 2+0.30▲7 · 3-1 strike called ball
Yordan Alvarez vs Ryan Watson - 3-0.13▲4 · 1-1 ball called strike
Dustin Harris vs Connelly Early
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
3 pitches went to the robots · 2 overturned (ump overruled) · 1 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.
- 1Yainer Diaz — ump said ball, robot ruled strike: overturned.
- 2Masataka Yoshida — ump said strike, robot ruled ball: overturned.
- 3Ceddanne Rafaela — ump said strike, robot ruled strike: upheld.
Our tracked-rulebook zone matched the ABS ruling on 3 of 3 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.