AZ @ SF
Home plate: Alex MacKay
“An honest evening's grade: nothing loud, nothing missed by much.”
What this shows — how Alex MacKay called the 149 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▼1 · 3-2 strike called ball· challenged
Jonah Cox vs Jose Cabrera - 2-0.30▲1 · 3-1 ball called strike
Gabriel Moreno vs Landen Roupp - 3-0.19▼1 · 2-0 ball called strike
Drew Gilbert vs Jose Cabrera
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 · 1 overturned (ump overruled) · 1 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.
- 1Gabriel Moreno — ump said ball, robot ruled ball: upheld.
- 2Drew Cavanaugh — ump said strike, robot ruled ball: overturned.
Our tracked-rulebook zone matched the ABS ruling on 0 of 2 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.