Blue Notes · Umpire Grade2026-04-24
ATH @ TEX
Home plate: Clint Vondrak
“A steady night's work behind the plate.”
Umpire Grade
95.8% accurate
Run Favor
runs, ATH
ABS Overturns
of 2 reviewed
What this shows — how Clint Vondrak called the 118 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 113 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+0.39▲7 · 2-2 strike called ball
Zack Gelof vs Cal Quantrill - 2+0.13▼3 · 1-0 strike called ball
Brandon Nimmo vs Luis Severino - 3+0.10▲8 · 0-1 strike called ball· challenged ✓
Jacob Wilson vs Cal Quantrill
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 · 2 overturned (ump overruled) · 0 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Nick Kurtz — ump said ball, robot ruled strike: overturned.
- 2Jacob Wilson — ump said ball, robot ruled strike: overturned.
Our tracked-rulebook zone matched the ABS ruling on 1 of 2 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.