Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-09-05

BOS @ BAL

Home plate: Ramon De Jesus

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

A-
Umpire Grade
94.5% accurate
0.4
Run Favor
runs, BAL
2
ABS Overturns
of 4 reviewed

What this shows — how Ramon De Jesus called the 165 pitches that were taken (no swing), graded against the tracked rulebook strike zone, or, on a pitch the ABS (Automated Ball-Strike System) reviewed on a challenge, against its ruling. 156 were right. Below, only the misses are plotted, alongside every challenged pitch.

The zone, as he called it

Challenge 1: Nick Sogard — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).1Challenge 2: Samuel Basallo — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).2Challenge 3: Samuel Basallo — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).3Challenge 4: Isiah Kiner-Falefa — 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+0.23▼2 · 0-2 strike called ball
    Christian Encarnacion-Strand vs Sonny Gray
  2. 2-0.20▲3 · 2-1 ball called strike
    Wilyer Abreu vs Chris Bassitt
  3. 3-0.19▲1 · 2-0 ball called strike· challenged ✓
    Nick Sogard vs Chris Bassitt

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 the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Nick Sogard — ump said strike, robot ruled ball: overturned.
  2. 2Samuel Basallo — ump said ball, robot ruled ball: upheld.
  3. 3Samuel Basallo — ump said strike, robot ruled strike: upheld.
  4. 4Isiah Kiner-Falefa — ump said strike, robot ruled ball: overturned.

Our tracked-rulebook zone matched the ABS ruling on 4 of 4 — a zone-definition gap (ABS grades a standardized, height-based zone). Where the two disagree, the umpire is graded on the ABS ruling.

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