Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-08-12

PHI @ STL

Home plate: Dan Iassogna

An honest evening's grade: nothing loud, nothing missed by much.

A-
Umpire Grade
94.0% accurate
0.5
Run Favor
runs, STL
2
ABS Overturns
of 4 reviewed

What this shows — how Dan Iassogna called the 150 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 141 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: Bryce Harper — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).1Challenge 2: J.T. Realmuto — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).2Challenge 3: J.T. Realmuto — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).3Challenge 4: Kyle Schwarber — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).4
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1-0.393 · 2-2 ball called strike· challenged
    Kyle Schwarber vs Kyle Leahy
  2. 2+0.238 · 0-2 strike called ball
    Blaze Jordan vs Chase Shugart
  3. 3-0.195 · 2-0 ball called strike
    César Prieto vs Zack Wheeler

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. 1Bryce Harper — ump said strike, robot ruled strike: upheld.
  2. 2J.T. Realmuto — ump said strike, robot ruled ball: overturned.
  3. 3J.T. Realmuto — ump said strike, robot ruled ball: overturned.
  4. 4Kyle Schwarber — ump said strike, robot ruled strike: upheld.

Our tracked-rulebook zone matched the ABS ruling on 1 of 4 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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