Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-08-09

CHC @ KC

Home plate: D.J. Reyburn

If it was close, it was a strike. The hitters noticed.

B-
Umpire Grade
92.0% accurate
0.6
Run Favor
runs, KC
1
ABS Overturns
of 2 reviewed

What this shows — how D.J. Reyburn called the 149 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: Pete Crow-Armstrong — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Nick Loftin — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).2
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.398 · 2-2 strike called ball
    Salvador Perez vs Ryan Zeferjahn
  2. 2-0.303 · 3-1 ball called strike
    Pete Crow-Armstrong vs Randy Dobnak
  3. 3-0.208 · 2-1 ball called strike
    Bobby Witt Jr. vs Ryan Zeferjahn

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. 1Pete Crow-Armstrong — ump said ball, robot ruled strike: overturned.
  2. 2Nick Loftin — ump said strike, robot ruled strike: upheld.

Our tracked-rulebook zone matched the ABS ruling on 1 of 2 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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