Blue Notes · Umpire Grade2026-08-24
“ABS had a long evening on this one.”
Umpire Grade
92.5% accurate
Run Favor
runs, BOS
ABS Overturns
of 6 reviewed
What this shows — how Ron Kulpa called the 174 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 161 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▲9 · 3-2 strike called ball· challenged ✓
Wilyer Abreu vs Cade Gibson - 2+0.39▼7 · 2-2 strike called ball
Owen Caissie vs Brayan Bello - 3+0.21▲7 · 3-0 strike called ball
Mickey Gasper vs Sandy Alcantara
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
6 pitches went to the robots · 5 overturned (ump overruled) · 1 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.
- 1Nick Sogard — ump said ball, robot ruled strike: overturned.
- 2Ceddanne Rafaela — ump said strike, robot ruled strike: upheld.
- 3Jakob Marsee — ump said ball, robot ruled strike: overturned.
- 4Esteury Ruiz — ump said ball, robot ruled strike: overturned.
- 5Wilyer Abreu — ump said ball, robot ruled strike: overturned.
- 6Owen Caissie — ump said ball, robot ruled strike: overturned.
Our tracked-rulebook zone matched the ABS ruling on 3 of 6 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.