Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-04-19

NYM @ CHC

Home plate: Adam Hamari

Reliable as a Tuesday: no complaints, no headlines.

B+
Umpire Grade
93.6% accurate
0.7
Run Favor
runs, NYM
2
ABS Overturns
of 3 reviewed

What this shows — how Adam Hamari called the 157 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 147 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: Moisés Ballesteros — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).1Challenge 2: Luis Torrens — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Mark Vientos — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).3
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.391 · 2-2 strike called ball
    Bo Bichette vs Javier Assad
  2. 2+0.238 · 0-2 strike called ball
    Francisco Alvarez vs Riley Martin
  3. 3-0.197 · 2-0 ball called strike
    Dansby Swanson vs Luke Weaver

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

3 pitches went to the robots · 2 overturned (ump overruled) · 1 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Moisés Ballesteros — ump said strike, robot ruled strike: upheld.
  2. 2Luis Torrens — ump said ball, robot ruled strike: overturned.
  3. 3Mark Vientos — ump said strike, robot ruled ball: overturned.

Our tracked-rulebook zone matched the ABS ruling on 1 of 3 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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