Blue Notes · Umpire Grade2026-07-06
PHI @ KC
Home plate: Alan Porter
“Nothing that'll trend, and on this beat that's a compliment.”
Umpire Grade
94.5% accurate
Run Favor
runs, KC
ABS Overturns
of 5 reviewed
What this shows — how Alan Porter called the 199 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 188 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+0.28▼1 · 1-2 strike called ball
Bobby Witt Jr. vs Cristopher Sánchez - 2+0.28▼6 · 1-2 strike called ball
Jac Caglianone vs Kyle Backhus - 3-0.21▼1 · 3-0 ball called strike
Nick Loftin vs Cristopher Sánchez
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
5 pitches went to the robots · 2 overturned (ump overruled) · 3 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Kyle Schwarber — ump said strike, robot ruled strike: upheld.
- 2Bryce Harper — ump said ball, robot ruled strike: overturned.
- 3Lane Thomas — ump said strike, robot ruled strike: upheld.
- 4Brandon Marsh — ump said ball, robot ruled strike: overturned.
- 5Luke Maile — ump said ball, robot ruled ball: upheld.
Our tracked-rulebook zone matched the ABS ruling on 3 of 5 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.