Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-09-01

BAL @ COL

Home plate: John Libka

Two dugouts, and only one of them smiling.

B+
Umpire Grade
93.4% accurate
1.5
Run Favor
runs, BAL
3
ABS Overturns
of 5 reviewed

What this shows — how John Libka called the 152 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 142 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: Brett Sullivan — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Brett Sullivan — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Christian Encarnacion-Strand — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).3Challenge 4: Adael Amador — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).4Challenge 5: Gunnar Henderson — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).5
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.693 · 3-2 strike called ball· challenged
    Jackson Holliday vs Gabriel Hughes
  2. 2+0.206 · 2-1 strike called ball
    Samuel Basallo vs Zach Agnos
  3. 3-0.194 · 2-0 ball called strike
    Adael Amador vs Kyle Bradish

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

5 pitches went to the robots · 3 overturned (ump overruled) · 2 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Brett Sullivan — ump said ball, robot ruled strike: overturned.
  2. 2Brett Sullivan — ump said ball, robot ruled strike: overturned.
  3. 3Christian Encarnacion-Strand — ump said strike, robot ruled strike: upheld.
  4. 4Adael Amador — ump said strike, robot ruled ball: overturned.
  5. 5Gunnar Henderson — ump said strike, robot ruled strike: upheld.

Our tracked-rulebook zone matched the ABS ruling on 4 of 5 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

Paste the link anywhere — the card previews on its own. Or take it with you.

Post on X