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 Grade2026-07-10

KC @ BAL

Home plate: Nick Mahrley

“The kind of night where the umpire is the least of the story.”

B+
Umpire Grade
93.2% accurate
0.2
Run Favor
runs, KC
0
ABS Overturns
of 1 reviewed

What this shows — how Nick Mahrley called the 132 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 123 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: Adley Rutschman — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).1
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.39▼3 · 2-2 strike called ball
    Taylor Ward vs Luinder Avila
  2. 2+0.23▲8 · 0-2 strike called ball
    Isaac Collins vs Brandon Young
  3. 3-0.13▼3 · 1-1 ball called strike
    Taylor Ward vs Luinder Avila

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

1 pitch went to the robots · 0 overturned (ump overruled) · 1 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.

  1. 1Adley Rutschman — ump said ball, robot ruled ball: upheld.

Our tracked-rulebook zone matched the ABS ruling on 0 of 1 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.