Blue Notes · Umpire Grade2026-05-30
ATL @ CIN
Home plate: Marvin Hudson
“If it was close, it was a strike. The hitters noticed.”
Umpire Grade
93.3% accurate
Run Favor
runs, ATL
ABS Overturns
of 2 reviewed
What this shows — how Marvin Hudson called the 165 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 154 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▲3 · 2-2 strike called ball
Sandy León vs Brady Singer - 2-0.23▼6 · 0-2 ball called strike
Sal Stewart vs Tyler Kinley - 3-0.19▼4 · 2-0 ball called strike
Tyler Stephenson vs Martín Pérez
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.
- 1Tyler Stephenson — ump said ball, robot ruled ball: upheld.
- 2Jorge Mateo — 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.