ATL @ PHI
Home plate: Clint Vondrak
“The zone stretched its legs.”
What this shows — how Clint Vondrak called the 109 pitches that were taken (no swing), graded against the tracked rulebook strike zone, or, on a pitch the ABS (Automated Ball-Strike System) reviewed on a challenge, against its ruling. 93 were right. Below, only the misses are plotted, alongside every challenged pitch.
The zone, as he called it
The calls that moved the game
- 1+0.23▲2 · 0-2 strike called ball· challenged ✓
Matt Olson vs Jesús Luzardo - 2+0.19▼1 · 2-0 strike called ball
Bryce Harper vs Grant Holmes - 3-0.19▲5 · 2-0 ball called strike
Austin Riley vs Jesús Luzardo
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
4 pitches went to the robots · 3 overturned (ump overruled) · 1 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.
- 1Bryce Harper — ump said strike, robot ruled ball: overturned.
- 2J.T. Realmuto — ump said ball, robot ruled strike: overturned.
- 3J.T. Realmuto — ump said ball, robot ruled strike: overturned.
- 4J.T. Realmuto — ump said strike, robot ruled strike: upheld.
Our tracked-rulebook zone matched the ABS ruling on 4 of 4 — a zone-definition gap (ABS grades a standardized, height-based zone). Where the two disagree, the umpire is graded on the ABS ruling.