AZ @ CLE
Home plate: Jonathan Parra
“The kind of night where the umpire is the least of the story.”
What this shows — how Jonathan Parra called the 157 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 146 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▲5 · 1-1 strike called ball
Max Kepler vs Gavin Williams - 2+0.13▼5 · 1-1 strike called ball
José Ramírez vs Merrill Kelly - 3+0.10▼2 · 0-1 strike called ball
Gabriel Arias vs Merrill Kelly
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.
- 1Patrick Bailey — ump said ball, robot ruled ball: upheld.
- 2Geraldo Perdomo — ump said ball, robot ruled strike: overturned.
- 3Patrick Bailey — ump said strike, robot ruled ball: overturned.
Our tracked-rulebook zone matched the ABS ruling on 0 of 3 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.