Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-08-30

Down the middle. Both dugouts had the same zone.

B
Umpire Grade
92.7% accurate
0.4
Run Favor
runs, TOR
0
ABS Overturns
of 2 reviewed

What this shows — how Steven Jaschinski called the 136 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 126 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: Alejandro Kirk — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).1Challenge 2: Dominic Canzone — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).2
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.135 · 1-1 strike called ball
    Vladimir Guerrero Jr. vs Logan Gilbert
  2. 2-0.139 · 1-1 ball called strike
    Randy Arozarena vs Braydon Fisher
  3. 3+0.105 · 0-1 strike called ball
    George Springer vs Logan Gilbert

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 · 0 overturned (ump overruled) · 2 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Alejandro Kirk — ump said strike, robot ruled strike: upheld.
  2. 2Dominic Canzone — ump said strike, robot ruled strike: upheld.

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

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