Blue Notes · Umpire Grade2026-07-17
TB @ BOS
Home plate: Mike Estabrook
“Solid and unspectacular — exactly what the job asks.”
Umpire Grade
94.0% accurate
Run Favor
runs, TB
ABS Overturns
of 2 reviewed
What this shows — how Mike Estabrook called the 117 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 110 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+0.28▼7 · 1-2 strike called ball
Tsung-Che Cheng vs Chris Roycroft - 2-0.13▼8 · 1-0 ball called strike
Anthony Seigler vs Ben Williamson - 3-0.13▼8 · 1-0 ball called strike
Masataka Yoshida vs Ben Williamson
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 · 0 overturned (ump overruled) · 2 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Carlos Narváez — ump said ball, robot ruled ball: upheld.
- 2Ben Williamson — ump said strike, robot ruled strike: upheld.
Our tracked-rulebook zone matched the ABS ruling on 2 of 2 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.