Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-09-08

A steady night's work behind the plate.

A
Umpire Grade
95.8% accurate
0.6
Run Favor
runs, NYY
1
ABS Overturns
of 4 reviewed

What this shows — how Steven Jaschinski called the 144 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 138 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: Hunter Goodman — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: George Lombard Jr. — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).2Challenge 3: Cole Carrigg — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).3Challenge 4: Adael Amador — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).4
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1-0.392 · 2-2 ball called strike
    Kyle Karros vs Cam Schlittler
  2. 2-0.398 · 2-2 ball called strike
    Connor Norby vs Brent Headrick
  3. 3-0.208 · 2-1 ball called strike
    George Lombard Jr. vs Blas Castaño

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 · 1 overturned (ump overruled) · 3 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Hunter Goodman — ump said ball, robot ruled strike: overturned.
  2. 2George Lombard Jr. — ump said strike, robot ruled strike: upheld.
  3. 3Cole Carrigg — ump said strike, robot ruled strike: upheld.
  4. 4Adael Amador — ump said strike, robot ruled strike: upheld.

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

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