Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-09-03

MIA @ KC

Home plate: Chris Guccione

Solid and unspectacular — exactly what the job asks.

B
Umpire Grade
92.8% accurate
0.2
Run Favor
runs, KC
3
ABS Overturns
of 6 reviewed

What this shows — how Chris Guccione called the 125 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 116 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: Vinnie Pasquantino — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).1Challenge 2: Agustín Ramírez — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).2Challenge 3: Carter Jensen — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).3Challenge 4: Joe Mack — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).4Challenge 5: Bobby Witt Jr. — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).5Challenge 6: Carter Jensen — 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+0.397 · 2-2 strike called ball· challenged
    Heriberto Hernández vs Craig Kimbrel
  2. 2+0.308 · 3-1 strike called ball· challenged
    Carter Jensen vs Cade Gibson
  3. 3+0.285 · 1-2 strike called ball
    Bobby Witt Jr. vs Sandy Alcantara

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

  1. 1Vinnie Pasquantino — ump said strike, robot ruled ball: overturned.
  2. 2Agustín Ramírez — ump said strike, robot ruled strike: upheld.
  3. 3Carter Jensen — ump said ball, robot ruled strike: overturned.
  4. 4Joe Mack — ump said ball, robot ruled strike: overturned.
  5. 5Bobby Witt Jr. — ump said strike, robot ruled strike: upheld.
  6. 6Carter Jensen — ump said ball, robot ruled ball: upheld.

Our tracked-rulebook zone matched the ABS ruling on 5 of 6 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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