Blue Notes · Umpire Grade2026-06-28
NYY @ BOS
Home plate: Adam Hamari
“The zone kept its promises.”
Umpire Grade
94.1% accurate
Run Favor
runs, NYY
ABS Overturns
of 5 reviewed
What this shows — how Adam Hamari called the 152 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 143 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· challenged ✓
Ceddanne Rafaela vs Carlos Rodón - 2-0.23▲4 · 0-2 ball called strike
Jasson Domínguez vs Sonny Gray - 3+0.23▲9 · 0-2 strike called ball
Cody Bellinger vs Aroldis Chapman
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
5 pitches went to the robots · 1 overturned (ump overruled) · 4 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.
- 1Ceddanne Rafaela — ump said strike, robot ruled ball: overturned.
- 2Connor Wong — ump said ball, robot ruled ball: upheld.
- 3Jasson Domínguez — ump said strike, robot ruled strike: upheld.
- 4Anthony Seigler — ump said strike, robot ruled strike: upheld.
- 5Austin Wells — ump said ball, robot ruled ball: upheld.
Our tracked-rulebook zone matched the ABS ruling on 4 of 5 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.