Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-08-27

HOU @ NYY

Home plate: John Tumpane

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

A
Umpire Grade
96.2% accurate
0.4
Run Favor
runs, HOU
2
ABS Overturns
of 3 reviewed

What this shows — how John Tumpane called the 130 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 125 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: Austin Wells — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Yainer Diaz — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Daulton Varsho — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).3
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.28▲1 · 1-2 strike called ball· challenged ✓
    Yordan Alvarez vs Gerrit Cole
  2. 2-0.20▼5 · 2-1 ball called strike
    Trent Grisham vs Hayden Wesneski
  3. 3-0.13▼4 · 1-0 ball called strike
    George Lombard Jr. vs Hayden Wesneski

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

3 pitches went to the robots · 2 overturned (ump overruled) · 1 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Austin Wells — ump said ball, robot ruled strike: overturned.
  2. 2Yainer Diaz — ump said ball, robot ruled strike: overturned.
  3. 3Daulton Varsho — ump said strike, robot ruled strike: upheld.

Our tracked-rulebook zone matched the ABS ruling on 3 of 3 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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