Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-08-24

CHC @ AZ

Home plate: Lance Barrett

Hawkeye clocked in early and stayed late.

B
Umpire Grade
92.8% accurate
0.5
Run Favor
runs, CHC
6
ABS Overturns
of 8 reviewed

What this shows — how Lance Barrett called the 152 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 141 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: Carson Kelly — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).1Challenge 2: Carson Kelly — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Geraldo Perdomo — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).3Challenge 4: Gabriel Moreno — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).4Challenge 5: Max Kepler — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).5Challenge 6: Carson Kelly — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).6Challenge 7: Carson Kelly — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).7Challenge 8: Alex Bregman — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).8
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.289 · 1-2 strike called ball
    Ian Happ vs Juan Burgos
  2. 2-0.211 · 3-0 ball called strike
    Michael Busch vs Merrill Kelly
  3. 3-0.202 · 2-1 ball called strike
    Nolan Arenado vs Kevin Gausman

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

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

  1. 1Carson Kelly — ump said strike, robot ruled ball: overturned.
  2. 2Carson Kelly — ump said ball, robot ruled strike: overturned.
  3. 3Geraldo Perdomo — ump said strike, robot ruled strike: upheld.
  4. 4Gabriel Moreno — ump said strike, robot ruled ball: overturned.
  5. 5Max Kepler — ump said ball, robot ruled strike: overturned.
  6. 6Carson Kelly — ump said strike, robot ruled ball: overturned.
  7. 7Carson Kelly — ump said strike, robot ruled ball: overturned.
  8. 8Alex Bregman — ump said strike, robot ruled strike: upheld.

Our tracked-rulebook zone matched the ABS ruling on 3 of 8 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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