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 Grade2026-05-19

BOS @ KC

Home plate: James Jean

“Textbook top to bottom — a quiet masterclass.”

A+
Umpire Grade
97.5% accurate
0.3
Run Favor
runs, BOS
2
ABS Overturns
of 4 reviewed

What this shows — how James Jean called the 162 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 158 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: Salvador Perez — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Nick Loftin — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).2Challenge 3: Carlos Narváez — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).3Challenge 4: Carter Jensen — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).4
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.21▲1 · 3-0 strike called ball
    Jarren Duran vs Bailey Falter
  2. 2-0.13▲5 · 1-0 ball called strike
    Wilyer Abreu vs Luinder Avila
  3. 3+0.09▲5 · 0-0 strike called ball
    Wilyer Abreu vs Luinder Avila

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

4 pitches went to the robots · 2 overturned (ump overruled) · 2 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.

  1. 1Salvador Perez — ump said ball, robot ruled strike: overturned.
  2. 2Nick Loftin — ump said strike, robot ruled strike: upheld.
  3. 3Carlos Narváez — ump said ball, robot ruled ball: upheld.
  4. 4Carter Jensen — ump said strike, robot ruled ball: overturned.

Our tracked-rulebook zone matched the ABS ruling on 2 of 4 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.