Blue Notes · Umpire Grade2026-04-09
ATH @ NYY
Home plate: Nate Tomlinson
“The zone kept to itself — the hitters said thanks.”
Umpire Grade
94.3% accurate
Run Favor
runs, NYY
ABS Overturns
of 5 reviewed
What this shows — how Nate Tomlinson called the 124 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 117 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▲9 · 1-2 strike called ball
Max Muncy vs Paul Blackburn - 2+0.21▼3 · 3-0 strike called ball
Amed Rosario vs Jeffrey Springs - 3+0.13▼2 · 1-1 strike called ball
Randal Grichuk vs Jeffrey Springs
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 Hawkeye ground truth, no model involved.
- 1José Caballero — ump said strike, robot ruled strike: upheld.
- 2Lawrence Butler — ump said strike, robot ruled strike: upheld.
- 3Austin Wynns — ump said strike, robot ruled ball: overturned.
- 4Cody Bellinger — ump said strike, robot ruled strike: upheld.
- 5Austin Wynns — 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.