Blue Notes · Umpire Grade2026-09-27
“A workmanlike night — nothing to frame, nothing to fix.”
Umpire Grade
93.8% accurate
Run Favor
runs, CLE
ABS Overturns
of 1 reviewed
What this shows — how Ron Kulpa called the 130 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 122 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▼4 · 2-2 ball called strike· challenged ✓
Maikel Garcia vs Austin Peterson - 2-0.13▲1 · 1-1 ball called strike
Nathaniel Lowe vs Daniel Lynch IV - 3-0.13▼4 · 1-1 ball called strike
Maikel Garcia vs Austin Peterson
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
1 pitch went to the robots · 1 overturned (ump overruled) · 0 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.
- 1Maikel Garcia — ump said strike, robot ruled ball: overturned.
Our tracked-rulebook zone matched the ABS ruling on 1 of 1 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.