Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-06-23

PHI @ WSH

Home plate: Dan Iassogna

The zone shrank when the pitchers needed it most.

C
Umpire Grade
89.4% accurate
0.6
Run Favor
runs, WSH
4
ABS Overturns
of 6 reviewed

What this shows — how Dan Iassogna called the 160 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 143 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: Keibert Ruiz — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).1Challenge 2: J.T. Realmuto — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Bryce Harper — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).3Challenge 4: Justin Crawford — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).4Challenge 5: Keibert Ruiz — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).5Challenge 6: Gabriel Rincones Jr. — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).6
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.287 · 1-2 strike called ball
    Nasim Nuñez vs Jesús Luzardo
  2. 2+0.236 · 0-2 strike called ball
    Jacob Young vs Jesús Luzardo
  3. 3+0.204 · 2-1 strike called ball
    Alec Bohm vs Zack Littell

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

6 pitches went to the robots · 4 overturned (ump overruled) · 2 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Keibert Ruiz — ump said ball, robot ruled ball: upheld.
  2. 2J.T. Realmuto — ump said ball, robot ruled strike: overturned.
  3. 3Bryce Harper — ump said strike, robot ruled ball: overturned.
  4. 4Justin Crawford — ump said strike, robot ruled strike: upheld.
  5. 5Keibert Ruiz — ump said ball, robot ruled strike: overturned.
  6. 6Gabriel Rincones Jr. — ump said strike, robot ruled ball: overturned.

Our tracked-rulebook zone matched the ABS ruling on 6 of 6 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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