Blue Notes · Umpire Grade2026-04-28
NYY @ TEX
Home plate: Chris Conroy
“The zone shrank when the pitchers needed it most.”
Umpire Grade
93.0% accurate
Run Favor
runs, NYY
ABS Overturns
of 4 reviewed
What this shows — how Chris Conroy called the 142 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 132 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+0.20▲5 · 2-1 strike called ball
Austin Wells vs Jacob deGrom - 2-0.13▼1 · 1-0 ball called strike
Joc Pederson vs Cam Schlittler - 3+0.13▲3 · 1-0 strike called ball
Trent Grisham vs Jacob deGrom
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 · 2 overturned (ump overruled) · 2 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Josh Jung — ump said strike, robot ruled strike: upheld.
- 2Cody Bellinger — ump said strike, robot ruled strike: upheld.
- 3Corey Seager — ump said ball, robot ruled strike: overturned.
- 4Austin Wells — ump said strike, robot ruled ball: overturned.
Our tracked-rulebook zone matched the ABS ruling on 2 of 4 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.