Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-09-05

MIN @ CWS

Home plate: Nick Mahrley

“Generous with the corners — the pitchers said thank you.”

B
Umpire Grade
92.3% accurate
0.6
Run Favor
runs, CWS
2
ABS Overturns
of 4 reviewed

What this shows — how Nick Mahrley called the 130 pitches that were taken (no swing), graded against the tracked rulebook strike zone, or, on a pitch the ABS (Automated Ball-Strike System) reviewed on a challenge, against its ruling. 120 were right. Below, only the misses are plotted, alongside every challenged pitch.

The zone, as he called it

Challenge 1: Ryan Kreidler — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled). Our tracking puts it on the other side of the line; the grade follows the ruling.1*Challenge 2: Ryan Jeffers — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).2Challenge 3: Ryan Jeffers — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).3Challenge 4: Ryan Jeffers — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).4
strike called ballball called strikeABS overturnedABS upheld

* Graded on the ABS ruling. ABS measures its own zone, set by the batter’s height and taken at the middle of the plate, and our tracking puts this pitch on the other side of the line.

The calls that moved the game

  1. 1-0.13▲3 · 1-1 ball called strike· challenged ✓
    Ryan Kreidler vs Anthony Kay
  2. 2-0.09▲2 · 0-0 ball called strike
    Kody Clemens vs Anthony Kay
  3. 3-0.09▲3 · 0-0 ball called strike
    Gabriel Gonzalez vs Anthony Kay

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

  1. 1Ryan Kreidler — ump said strike, robot ruled ball: overturned.
  2. 2Ryan Jeffers — ump said ball, robot ruled ball: upheld.
  3. 3Ryan Jeffers — ump said ball, robot ruled strike: overturned.
  4. 4Ryan Jeffers — ump said ball, robot ruled ball: upheld.

Our tracked-rulebook zone matched the ABS ruling on 3 of 4 — a zone-definition gap (ABS grades a standardized, height-based zone). Where the two disagree, the umpire is graded on the ABS ruling.

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