Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-05-06

ATL @ SEA

Home plate: Ryan Additon

The black wasn't in play tonight.

C+
Umpire Grade
90.6% accurate
0.9
Run Favor
runs, SEA
3
ABS Overturns
of 6 reviewed

What this shows — how Ryan Additon called the 138 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 125 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: Sean Murphy — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Sean Murphy — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Jhonny Pereda — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).3Challenge 4: Sean Murphy — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).4Challenge 5: Julio Rodríguez — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).5Challenge 6: Mauricio Dubón — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).6
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1-0.281 · 1-2 ball called strike
    Julio Rodríguez vs Martín Pérez
  2. 2+0.287 · 1-2 strike called ball
    Dominic Canzone vs Didier Fuentes
  3. 3+0.287 · 1-2 strike called ball· challenged
    Leo Rivas vs Didier Fuentes

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 · 3 overturned (ump overruled) · 3 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Sean Murphy — ump said ball, robot ruled strike: overturned.
  2. 2Sean Murphy — ump said ball, robot ruled strike: overturned.
  3. 3Jhonny Pereda — ump said ball, robot ruled ball: upheld.
  4. 4Sean Murphy — ump said ball, robot ruled strike: overturned.
  5. 5Julio Rodríguez — ump said strike, robot ruled strike: upheld.
  6. 6Mauricio Dubón — ump said strike, robot ruled strike: upheld.

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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