Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-08-28

MIA @ WSH

Home plate: Laz Diaz

The kind of night where the umpire is the least of the story.

B+
Umpire Grade
93.9% accurate
0.7
Run Favor
runs, MIA
3
ABS Overturns
of 5 reviewed

What this shows — how Laz Diaz called the 147 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 138 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

Challenge 1: Joe Mack — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).1Challenge 2: Joe Mack — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).2Challenge 3: Joe Mack — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).3Challenge 4: Abimelec Ortiz — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).4Challenge 5: Agustín Ramírez — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).5
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.396 · 2-2 strike called ball
    Agustín Ramírez vs Jackson Kent
  2. 2+0.286 · 1-2 strike called ball
    Heriberto Hernández vs Jackson Kent
  3. 3-0.194 · 2-0 ball called strike
    Otto Lopez vs Jackson Kent

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 · 3 overturned (ump overruled) · 2 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Joe Mack — ump said strike, robot ruled ball: overturned.
  2. 2Joe Mack — ump said strike, robot ruled ball: overturned.
  3. 3Joe Mack — ump said strike, robot ruled ball: overturned.
  4. 4Abimelec Ortiz — ump said strike, robot ruled strike: upheld.
  5. 5Agustín Ramírez — ump said strike, robot ruled strike: upheld.

Our tracked-rulebook zone matched the ABS ruling on 2 of 5 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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