Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-06-03

ATH @ CHC

Home plate: John Libka

Squeezed the edges; the hitters didn't mind at all.

B+
Umpire Grade
93.5% accurate
0.3
Run Favor
runs, CHC
1
ABS Overturns
of 2 reviewed

What this shows — how John Libka called the 168 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 157 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: Miguel Amaya — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Shea Langeliers — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).2
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.236 · 0-2 strike called ball
    Tyler Soderstrom vs Hoby Milner
  2. 2+0.198 · 2-0 strike called ball
    Alex Bregman vs Luis Medina
  3. 3+0.132 · 1-1 strike called ball
    Seiya Suzuki vs Jeffrey Springs

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

2 pitches went to the robots · 1 overturned (ump overruled) · 1 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Miguel Amaya — ump said ball, robot ruled strike: overturned.
  2. 2Shea Langeliers — ump said ball, robot ruled ball: upheld.

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

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