Blue Notes · Umpire Grade2026-04-07
BAL @ CWS
Home plate: Mike Estabrook
“Down the middle. Both dugouts had the same zone.”
Umpire Grade
92.6% accurate
Run Favor
runs, BAL
ABS Overturns
of 3 reviewed
What this shows — how Mike Estabrook called the 189 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 175 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▼1 · 2-2 ball called strike
Miguel Vargas vs Trevor Rogers - 2+0.28▼3 · 1-2 strike called ball· challenged
Lenyn Sosa vs Trevor Rogers - 3+0.28▼4 · 1-2 strike called ball
Colson Montgomery vs Trevor Rogers
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
3 pitches went to the robots · 1 overturned (ump overruled) · 2 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Edgar Quero — ump said ball, robot ruled ball: upheld.
- 2Samuel Basallo — ump said ball, robot ruled ball: upheld.
- 3Derek Hill — ump said ball, robot ruled strike: overturned.
Our tracked-rulebook zone matched the ABS ruling on 1 of 3 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.