Blue Notes · Umpire Grade2026-06-03
MIA @ WSH
Home plate: Alan Porter
“One side pitched to a slightly bigger plate.”
Umpire Grade
94.2% accurate
Run Favor
runs, MIA
ABS Overturns
of 6 reviewed
What this shows — how Alan Porter called the 172 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 162 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▲5 · 2-2 strike called ball
Joe Mack vs Andrew Alvarez - 2+0.23▲9 · 0-2 strike called ball
Kyle Stowers vs Gus Varland - 3+0.19▲5 · 2-0 strike called ball
Connor Norby vs Andrew Alvarez
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 · 3 overturned (ump overruled) · 3 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Keibert Ruiz — ump said ball, robot ruled ball: upheld.
- 2Jakob Marsee — ump said ball, robot ruled strike: overturned.
- 3Keibert Ruiz — ump said strike, robot ruled ball: overturned.
- 4Calvin Faucher — ump said ball, robot ruled ball: upheld.
- 5Joe Mack — ump said strike, robot ruled ball: overturned.
- 6Curtis Mead — ump said strike, robot ruled strike: upheld.
Our tracked-rulebook zone matched the ABS ruling on 4 of 6 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.