Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-08-28

COL @ ATL

Home plate: Tom Hanahan

Somebody's pitching staff sent a thank-you note.

A
Umpire Grade
96.4% accurate
1.3
Run Favor
runs, COL
4
ABS Overturns
of 6 reviewed

What this shows — how Tom Hanahan called the 139 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 134 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: Sean Murphy — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).1Challenge 2: Connor Norby — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).2Challenge 3: Cole Carrigg — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).3Challenge 4: Hunter Goodman — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).4Challenge 5: Ha-Seong Kim — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).5Challenge 6: Sean Murphy — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).6
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.697 · 3-2 strike called ball
    TJ Rumfield vs Ray Kerr
  2. 2+0.287 · 1-2 strike called ball
    TJ Rumfield vs Ray Kerr
  3. 3+0.139 · 1-1 strike called ball
    TJ Rumfield vs Raisel Iglesias

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

6 pitches went to the robots · 4 overturned (ump overruled) · 2 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Sean Murphy — ump said strike, robot ruled ball: overturned.
  2. 2Connor Norby — ump said strike, robot ruled strike: upheld.
  3. 3Cole Carrigg — ump said ball, robot ruled strike: overturned.
  4. 4Hunter Goodman — ump said strike, robot ruled ball: overturned.
  5. 5Ha-Seong Kim — ump said ball, robot ruled strike: overturned.
  6. 6Sean Murphy — ump said ball, robot ruled ball: upheld.

Our tracked-rulebook zone matched the ABS ruling on 2 of 6 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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