Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-06-07

BOS @ NYY

Home plate: D.J. Reyburn

Borderline went to the battery all night.

B-
Umpire Grade
91.1% accurate
0.7
Run Favor
runs, NYY
4
ABS Overturns
of 5 reviewed

What this shows — how D.J. Reyburn called the 135 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 123 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: Mickey Gasper — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Anthony Seigler — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).2Challenge 3: Caleb Durbin — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).3Challenge 4: Ali Sánchez — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).4Challenge 5: Mickey Gasper — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).5
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1-0.201 · 2-1 ball called strike
    Wilyer Abreu vs Cam Schlittler
  2. 2+0.202 · 2-1 strike called ball
    Trent Grisham vs Ranger Suarez
  3. 3+0.203 · 2-1 strike called ball
    Anthony Seigler vs Cam Schlittler

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 · 4 overturned (ump overruled) · 1 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Mickey Gasper — ump said ball, robot ruled strike: overturned.
  2. 2Anthony Seigler — ump said strike, robot ruled ball: overturned.
  3. 3Caleb Durbin — ump said strike, robot ruled ball: overturned.
  4. 4Ali Sánchez — ump said ball, robot ruled ball: upheld.
  5. 5Mickey Gasper — ump said ball, robot ruled strike: overturned.

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

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