Blue Notes · Umpire Grade2026-05-19
TEX @ COL
Home plate: Alan Porter
“Nothing that'll trend, and on this beat that's a compliment.”
Umpire Grade
94.9% accurate
Run Favor
runs, TEX
ABS Overturns
of 1 reviewed
What this shows — how Alan Porter called the 138 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 131 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+0.30▲9 · 3-1 strike called ball
Justin Foscue vs Brett Sullivan - 2-0.13▲8 · 1-0 ball called strike
Josh Jung vs Seth Halvorsen - 3+0.13▲9 · 1-0 strike called ball
Joc Pederson vs Brett Sullivan
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 Hawkeye ground truth, no model involved.
- 1Danny Jansen — ump said strike, robot ruled ball: overturned.
Our tracked-rulebook zone matched the ABS ruling on 0 of 1 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.