Blue Notes · Umpire Grade2026-09-22
“A steady night's work behind the plate.”
Umpire Grade
94.8% accurate
Run Favor
runs, PIT
ABS Overturns
of 3 reviewed
What this shows — how Ron Kulpa called the 135 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 128 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+0.19▲9 · 2-0 strike called ball
Masyn Winn vs Gregory Soto - 2-0.19▲9 · 2-0 ball called strike
JJ Wetherholt vs Gregory Soto - 3-0.13▼4 · 1-0 ball called strike
Ryan O'Hearn vs Andre Pallante
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
3 pitches went to the robots · 1 overturned (ump overruled) · 2 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.
- 1Leo Bernal — ump said ball, robot ruled strike: overturned.
- 2Rafael Flores Jr. — ump said ball, robot ruled ball: upheld.
- 3Leo Bernal — ump said ball, robot ruled ball: upheld.
Our tracked-rulebook zone matched the ABS ruling on 3 of 3 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.