Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-07-20

DET @ CHC

Home plate: Tripp Gibson

Reliable as a Tuesday: no complaints, no headlines.

A
Umpire Grade
95.6% accurate
0.4
Run Favor
runs, CHC
2
ABS Overturns
of 6 reviewed

What this shows — how Tripp Gibson called the 205 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 196 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: Kevin McGonigle — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Riley Greene — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).2Challenge 3: Miguel Amaya — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).3Challenge 4: Dillon Dingler — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).4Challenge 5: Miguel Amaya — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).5Challenge 6: Carson Kelly — 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+0.392 · 2-2 strike called ball
    Ian Happ vs Jack Flaherty
  2. 2+0.285 · 1-2 strike called ball
    Michael Busch vs Drew Sommers
  3. 3+0.2810 · 1-2 strike called ball· challenged
    Dillon Dingler vs Javier Assad

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

  1. 1Kevin McGonigle — ump said ball, robot ruled strike: overturned.
  2. 2Riley Greene — ump said strike, robot ruled strike: upheld.
  3. 3Miguel Amaya — ump said strike, robot ruled ball: overturned.
  4. 4Dillon Dingler — ump said ball, robot ruled ball: upheld.
  5. 5Miguel Amaya — ump said ball, robot ruled ball: upheld.
  6. 6Carson Kelly — ump said ball, robot ruled ball: upheld.

Our tracked-rulebook zone matched the ABS ruling on 3 of 6 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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