Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-08-05

STL @ NYY

Home plate: Cory Blaser

Down the middle. Both dugouts had the same zone.

A-
Umpire Grade
94.3% accurate
0.9
Run Favor
runs, NYY
4
ABS Overturns
of 8 reviewed

What this shows — how Cory Blaser called the 209 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 197 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 ball, the robot ruled ball (upheld — ump confirmed).1Challenge 2: Heliot Ramos — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Austin Wells — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).3Challenge 4: Iván Herrera — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).4Challenge 5: Iván Herrera — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).5Challenge 6: Iván Herrera — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).6Challenge 7: Heliot Ramos — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).7Challenge 8: Bryan Torres — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).8
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1-0.399 · 2-2 ball called strike· challenged
    Bryan Torres vs Paul Blackburn
  2. 2-0.301 · 3-1 ball called strike
    JJ Wetherholt vs Will Warren
  3. 3+0.203 · 2-1 strike called ball
    JJ Wetherholt vs Will Warren

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

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

  1. 1Austin Wells — ump said ball, robot ruled ball: upheld.
  2. 2Heliot Ramos — ump said ball, robot ruled strike: overturned.
  3. 3Austin Wells — ump said strike, robot ruled ball: overturned.
  4. 4Iván Herrera — ump said strike, robot ruled ball: overturned.
  5. 5Iván Herrera — ump said strike, robot ruled ball: overturned.
  6. 6Iván Herrera — ump said ball, robot ruled ball: upheld.
  7. 7Heliot Ramos — ump said strike, robot ruled strike: upheld.
  8. 8Bryan Torres — ump said strike, robot ruled strike: upheld.

Our tracked-rulebook zone matched the ABS ruling on 4 of 8 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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