Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-07-11

BOS @ NYM

Home plate: Brock Ballou

This one went to video review more than most.

B-
Umpire Grade
91.2% accurate
1.0
Run Favor
runs, BOS
5
ABS Overturns
of 9 reviewed

What this shows — how Brock Ballou called the 170 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 155 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: Wilyer Abreu — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).1Challenge 2: Freddy Peralta — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).2Challenge 3: Francisco Alvarez — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).3Challenge 4: Carlos Narváez — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).4Challenge 5: Carlos Narváez — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).5Challenge 6: Carlos Narváez — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).6Challenge 7: Carlos Narváez — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).7Challenge 8: Bo Bichette — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).8Challenge 9: A.J. Ewing — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).9
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.694 · 3-2 strike called ball
    Caleb Durbin vs Freddy Peralta
  2. 2+0.393 · 2-2 strike called ball
    Wilyer Abreu vs Freddy Peralta
  3. 3+0.395 · 2-2 strike called ball· challenged
    Caleb Durbin vs Huascar Brazobán

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

9 pitches went to the robots · 5 overturned (ump overruled) · 4 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Wilyer Abreu — ump said strike, robot ruled ball: overturned.
  2. 2Freddy Peralta — ump said ball, robot ruled ball: upheld.
  3. 3Francisco Alvarez — ump said ball, robot ruled strike: overturned.
  4. 4Carlos Narváez — ump said ball, robot ruled strike: overturned.
  5. 5Carlos Narváez — ump said ball, robot ruled ball: upheld.
  6. 6Carlos Narváez — ump said ball, robot ruled strike: overturned.
  7. 7Carlos Narváez — ump said ball, robot ruled ball: upheld.
  8. 8Bo Bichette — ump said strike, robot ruled ball: overturned.
  9. 9A.J. Ewing — ump said strike, robot ruled strike: upheld.

Our tracked-rulebook zone matched the ABS ruling on 9 of 9 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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