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 Grade2026-04-24

BOS @ BAL

Home plate: Jansen Visconti

“Down the middle. Both dugouts had the same zone.”

B-
Umpire Grade
91.8% accurate
0.1
Run Favor
runs, BOS
1
ABS Overturns
of 2 reviewed

What this shows — how Jansen Visconti called the 146 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 134 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: Trevor Story — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Carlos Narváez — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).2
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1-0.30▼1 · 3-1 ball called strike
    Coby Mayo vs Brayan Bello
  2. 2-0.28▼8 · 1-2 ball called strike
    Coby Mayo vs Ryan Watson
  3. 3-0.23▲8 · 0-2 ball called strike
    Willson Contreras vs Cameron Foster

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

2 pitches went to the robots · 1 overturned (ump overruled) · 1 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.

  1. 1Trevor Story — ump said ball, robot ruled strike: overturned.
  2. 2Carlos Narváez — ump said ball, robot ruled ball: upheld.

Our tracked-rulebook zone matched the ABS ruling on 0 of 2 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.