Blue Notes · Umpire Grade2026-05-20
NYM @ WSH
Home plate: John Bacon
“Expanded the plate a touch past its 17 inches.”
Umpire Grade
87.6% accurate
Run Favor
runs, WSH
ABS Overturns
of 2 reviewed
What this shows — how John Bacon called the 121 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 106 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
- 1-0.69▲5 · 3-2 ball called strike
Hayden Senger vs Zack Littell - 2+0.28▼1 · 1-2 strike called ball
Dylan Crews vs Zach Thornton - 3+0.23▼8 · 0-2 strike called ball
Nasim Nuñez vs Craig Kimbrel
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 · 1 overturned (ump overruled) · 1 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Nasim Nuñez — ump said ball, robot ruled strike: overturned.
- 2Nasim Nuñez — ump said strike, robot ruled strike: upheld.
Our tracked-rulebook zone matched the ABS ruling on 1 of 2 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.