Fever BaseballFuture Value Radar (FVR) · On the record
RECORD: 0 HIT · 0 MISS · 12 OPEN · FIRST CALL RESOLVES AUG 12
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Blue Notes · Umpire Grade2026-06-19

STL @ KC

Home plate: Tripp Gibson

“The zone leaned, and the ledger noticed.”

B+
Umpire Grade
93.2% accurate
1.3
Run Favor
runs, STL
1
ABS Overturns
of 4 reviewed

What this shows — how Tripp Gibson called the 147 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 137 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: Carter Jensen — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).1Challenge 2: Iván Herrera — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).2Challenge 3: Jordan Walker — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).3Challenge 4: Carter Jensen — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).4
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.69▲3 · 3-2 strike called ball
    Nathan Church vs Seth Lugo
  2. 2+0.69▲6 · 3-2 strike called ball
    Iván Herrera vs Seth Lugo
  3. 3+0.13▼1 · 1-1 strike called ball
    Carter Jensen vs Michael McGreevy

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

4 pitches went to the robots · 1 overturned (ump overruled) · 3 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.

  1. 1Carter Jensen — ump said ball, robot ruled ball: upheld.
  2. 2Iván Herrera — ump said ball, robot ruled ball: upheld.
  3. 3Jordan Walker — ump said ball, robot ruled strike: overturned.
  4. 4Carter Jensen — ump said ball, robot ruled ball: upheld.

Our tracked-rulebook zone matched the ABS ruling on 2 of 4 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.