Blue Notes · Umpire Grade2026-03-31
“One side pitched to a slightly bigger plate.”
Umpire Grade
91.8% accurate
Run Favor
runs, TOR
ABS Overturns
of 7 reviewed
What this shows — how Laz Diaz called the 134 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 123 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▲2 · 3-2 ball called strike
Kyle Karros vs Max Scherzer - 2+0.28▼2 · 1-2 strike called ball· challenged ✓
Nathan Lukes vs Ryan Feltner - 3-0.20▲8 · 2-1 ball called strike· challenged ✓
Kyle Karros vs Braydon Fisher
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
7 pitches went to the robots · 3 overturned (ump overruled) · 4 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.
- 1Tyler Heineman — ump said ball, robot ruled ball: upheld.
- 2Hunter Goodman — ump said ball, robot ruled strike: overturned.
- 3Hunter Goodman — ump said ball, robot ruled ball: upheld.
- 4Kazuma Okamoto — ump said strike, robot ruled strike: upheld.
- 5Hunter Goodman — ump said ball, robot ruled strike: overturned.
- 6Kyle Karros — ump said strike, robot ruled ball: overturned.
- 7Hunter Goodman — ump said strike, robot ruled strike: upheld.
Our tracked-rulebook zone matched the ABS ruling on 6 of 7 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.