AZ @ KC
Home plate: Ryan Wills
“The zone shrank when the pitchers needed it most.”
What this shows — how Ryan Wills called the 185 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 172 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
- 1-0.39▲10 · 2-2 ball called strike· challenged ✓
Nolan Arenado vs Steven Cruz - 2-0.21▼8 · 3-0 ball called strike
Salvador Perez vs Jonathan Loáisiga - 3+0.21▼10 · 3-0 strike called ball
Michael Massey vs Blake Walston
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.
- 1Carter Jensen — ump said ball, robot ruled ball: upheld.
- 2Nolan Arenado — ump said strike, robot ruled ball: overturned.
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.