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 Grade2026-04-25

DET @ CIN

Home plate: Laz Diaz

“An honest evening's grade: nothing loud, nothing missed by much.”

A-
Umpire Grade
94.7% accurate
0.2
Run Favor
runs, DET
3
ABS Overturns
of 6 reviewed

What this shows — how Laz Diaz called the 169 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 160 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: Sal Stewart — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Matt Vierling — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).2Challenge 3: Dillon Dingler — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).3Challenge 4: Tyler Stephenson — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).4Challenge 5: Elly De La Cruz — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).5Challenge 6: Dane Myers — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).6
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.20▲7 · 2-1 strike called ball
    Matt Vierling vs Graham Ashcraft
  2. 2+0.13▼4 · 1-1 strike called ball
    TJ Friedl vs Burch Smith
  3. 3-0.13▼2 · 1-0 ball called strike
    Elly De La Cruz vs Jack Flaherty

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.

  1. 1Sal Stewart — ump said ball, robot ruled strike: overturned.
  2. 2Matt Vierling — ump said strike, robot ruled strike: upheld.
  3. 3Dillon Dingler — ump said strike, robot ruled ball: overturned.
  4. 4Tyler Stephenson — ump said ball, robot ruled strike: overturned.
  5. 5Elly De La Cruz — ump said strike, robot ruled strike: upheld.
  6. 6Dane Myers — ump said strike, robot ruled strike: upheld.

Our tracked-rulebook zone matched the ABS ruling on 3 of 6 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.