Blue Notes · Umpire Grade2026-05-07
TEX @ NYY
Home plate: Brock Ballou
“Two dugouts, and only one of them smiling.”
Umpire Grade
94.1% accurate
Run Favor
runs, NYY
ABS Overturns
of 1 reviewed
What this shows — how Brock Ballou called the 170 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 160 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▼6 · 3-2 strike called ball· challenged
Ryan McMahon vs MacKenzie Gore - 2+0.69▼7 · 3-2 strike called ball
Paul Goldschmidt vs Peyton Gray - 3+0.28▲1 · 1-2 strike called ball
Ezequiel Duran vs Paul Blackburn
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 · 0 overturned (ump overruled) · 1 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Danny Jansen — ump said ball, robot ruled ball: upheld.
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.