Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-04-28

TB @ CLE

Home plate: Tom Hanahan

The zone leaned, and the ledger noticed.

B
Umpire Grade
92.9% accurate
1.5
Run Favor
runs, TB
1
ABS Overturns
of 3 reviewed

What this shows — how Tom Hanahan called the 141 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 131 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: Angel Martínez — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).1Challenge 2: Bo Naylor — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).2Challenge 3: Nick Fortes — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).3
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.694 · 3-2 strike called ball· challenged
    Jake Fraley vs Tanner Bibee
  2. 2-0.282 · 1-2 ball called strike
    Daniel Schneemann vs Nick Martinez
  3. 3-0.218 · 3-0 ball called strike
    Rhys Hoskins vs Ian Seymour

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

  1. 1Angel Martínez — ump said strike, robot ruled strike: upheld.
  2. 2Bo Naylor — ump said ball, robot ruled ball: upheld.
  3. 3Nick Fortes — ump said ball, robot ruled strike: overturned.

Our tracked-rulebook zone matched the ABS ruling on 2 of 3 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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