Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-08-28

BOS @ NYY

Home plate: Edwin Moscoso

ABS had a long evening on this one.

A
Umpire Grade
95.7% accurate
0.1
Run Favor
runs, BOS
7
ABS Overturns
of 9 reviewed

What this shows — how Edwin Moscoso called the 140 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 134 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: Austin Wells — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).1Challenge 2: Austin Wells — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).2Challenge 3: Anthony Seigler — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).3Challenge 4: George Lombard Jr. — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).4Challenge 5: Nick Sogard — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).5Challenge 6: Willson Contreras — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).6Challenge 7: Austin Wells — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).7Challenge 8: Jahmai Jones — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).8Challenge 9: Austin Wells — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).9
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1-0.284 · 1-2 ball called strike
    Trent Grisham vs Patrick Sandoval
  2. 2-0.215 · 3-0 ball called strike
    Anthony Seigler vs Cam Schlittler
  3. 3+0.206 · 2-1 strike called ball
    Trent Grisham vs Patrick Sandoval

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

9 pitches went to the robots · 7 overturned (ump overruled) · 2 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Austin Wells — ump said strike, robot ruled ball: overturned.
  2. 2Austin Wells — ump said strike, robot ruled ball: overturned.
  3. 3Anthony Seigler — ump said ball, robot ruled strike: overturned.
  4. 4George Lombard Jr. — ump said ball, robot ruled strike: overturned.
  5. 5Nick Sogard — ump said ball, robot ruled strike: overturned.
  6. 6Willson Contreras — ump said strike, robot ruled strike: upheld.
  7. 7Austin Wells — ump said ball, robot ruled strike: overturned.
  8. 8Jahmai Jones — ump said ball, robot ruled strike: overturned.
  9. 9Austin Wells — ump said ball, robot ruled ball: upheld.

Our tracked-rulebook zone matched the ABS ruling on 2 of 9 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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