Blue Notes · Umpire Grade2026-05-25
NYY @ KC
Home plate: Clint Vondrak
“A workmanlike night — nothing to frame, nothing to fix.”
Umpire Grade
94.7% accurate
Run Favor
runs, KC
ABS Overturns
of 1 reviewed
What this shows — how Clint Vondrak called the 131 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 124 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
strike called ballball called strikeABS overturnedABS upheld
The calls that moved the game
- 1-0.69▲5 · 3-2 ball called strike
Trent Grisham vs Michael Wacha - 2+0.28▲4 · 1-2 strike called ball
Jazz Chisholm Jr. vs Michael Wacha - 3+0.23▲8 · 0-2 strike called ball
Aaron Judge vs Daniel Lynch IV
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
1 pitch went to the robots · 1 overturned (ump overruled) · 0 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Salvador Perez — ump said ball, robot ruled strike: overturned.
Our tracked-rulebook zone matched the ABS ruling on 0 of 1 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.