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 Grade2026-04-05

SD @ BOS

Home plate: Laz Diaz

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

A-
Umpire Grade
94.3% accurate
0.1
Run Favor
runs, BOS
3
ABS Overturns
of 3 reviewed

What this shows — how Laz Diaz called the 157 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 148 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: Luis Campusano — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).1Challenge 2: Miguel Andujar — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Luis Campusano — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).3
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.28▼1 · 1-2 strike called ball
    Jarren Duran vs Walker Buehler
  2. 2-0.13▲2 · 1-1 ball called strike
    Manny Machado vs Ranger Suarez
  3. 3+0.13▲4 · 1-1 strike called ball· challenged ✓
    Miguel Andujar vs Ranger Suarez

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

3 pitches went to the robots · 3 overturned (ump overruled) · 0 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.

  1. 1Luis Campusano — ump said strike, robot ruled ball: overturned.
  2. 2Miguel Andujar — ump said ball, robot ruled strike: overturned.
  3. 3Luis Campusano — ump said strike, robot ruled ball: overturned.

Our tracked-rulebook zone matched the ABS ruling on 1 of 3 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.