Fever BaseballFuture Value Radar (FVR) · On the record
RECORD: 0 HIT · 0 MISS · 12 OPEN · FIRST CALL RESOLVES AUG 12
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Blue Notes · Umpire Grade2026-04-21

ATL @ WSH

Home plate: Laz Diaz

“Reliable as a Tuesday: no complaints, no headlines.”

B+
Umpire Grade
93.5% accurate
0.3
Run Favor
runs, ATL
2
ABS Overturns
of 5 reviewed

What this shows — how Laz Diaz called the 199 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 186 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: Drew Millas — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).1Challenge 2: Ronald Acuña Jr. — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).2Challenge 3: James Wood — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).3Challenge 4: Mauricio Dubón — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).4Challenge 5: Drew Millas — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).5
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.69▼1 · 3-2 strike called ball
    James Wood vs Reynaldo López
  2. 2-0.30▼7 · 3-1 ball called strike
    Drew Millas vs Ian Hamilton
  3. 3+0.19▲8 · 2-0 strike called ball
    Mauricio Dubón vs Cionel Pérez

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.

  1. 1Drew Millas — ump said ball, robot ruled ball: upheld.
  2. 2Ronald Acuña Jr. — ump said strike, robot ruled strike: upheld.
  3. 3James Wood — ump said ball, robot ruled strike: overturned.
  4. 4Mauricio Dubón — ump said ball, robot ruled strike: overturned.
  5. 5Drew Millas — ump said ball, robot ruled ball: 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.