Blue Notes · Umpire Grade2026-06-10
“A steady night's work behind the plate.”
Umpire Grade
92.8% accurate
Run Favor
runs, LAA
ABS Overturns
of 4 reviewed
What this shows — how Ron Kulpa called the 125 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 116 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▲2 · 2-2 ball called strike
Isaac Paredes vs Reid Detmers - 2+0.23▼3 · 0-2 strike called ball
Mike Trout vs Peter Lambert - 3+0.13▲10 · 1-1 strike called ball
Isaac Paredes vs Ryan Zeferjahn
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
4 pitches went to the robots · 3 overturned (ump overruled) · 1 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Christian Vázquez — ump said strike, robot ruled ball: overturned.
- 2Zach Neto — ump said ball, robot ruled strike: overturned.
- 3Christian Vázquez — ump said strike, robot ruled ball: overturned.
- 4Christian Vázquez — ump said ball, robot ruled ball: upheld.
Our tracked-rulebook zone matched the ABS ruling on 1 of 4 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.