AZ @ COL
Home plate: Nick Mahrley
“Called a fair game and let the players decide it.”
What this shows — how Nick Mahrley called the 165 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 154 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▲7 · 2-2 ball called strike
Jose Fernandez vs Blas Castaño - 2-0.39▼9 · 2-2 ball called strike· challenged ✓
TJ Rumfield vs Paul Sewald - 3-0.21▼8 · 3-0 ball called strike
Troy Johnston vs Brandon Pfaadt
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.
- 1Gabriel Moreno — ump said ball, robot ruled strike: overturned.
- 2Jose Fernandez — ump said strike, robot ruled strike: upheld.
- 3TJ Rumfield — ump said strike, robot ruled ball: overturned.
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.