Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-04-10

CWS @ KC

Home plate: Tripp Gibson

The strike zone picked a side, and wasn't shy about it.

A-
Umpire Grade
94.6% accurate
1.5
Run Favor
runs, CWS
2
ABS Overturns
of 3 reviewed

What this shows — how Tripp Gibson called the 92 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 87 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: Salvador Perez — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Edgar Quero — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).2Challenge 3: Salvador Perez — 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+0.691 · 3-2 strike called ball
    Miguel Vargas vs Kris Bubic
  2. 2+0.391 · 2-2 strike called ball· challenged
    Chase Meidroth vs Kris Bubic
  3. 3+0.233 · 0-2 strike called ball
    Derek Hill vs Kris Bubic

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. 1Salvador Perez — ump said ball, robot ruled strike: overturned.
  2. 2Edgar Quero — ump said ball, robot ruled ball: upheld.
  3. 3Salvador Perez — ump said ball, robot ruled strike: overturned.

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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