Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-08-11

KC @ LAD

Home plate: Brian Walsh

A workmanlike night — nothing to frame, nothing to fix.

A-
Umpire Grade
94.0% accurate
0.2
Run Favor
runs, KC
4
ABS Overturns
of 7 reviewed

What this shows — how Brian Walsh called the 150 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 141 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: Nick Loftin — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Ben Rortvedt — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).2Challenge 3: Carter Jensen — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).3Challenge 4: Ben Rortvedt — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).4Challenge 5: Tommy Edman — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).5Challenge 6: Michael Massey — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).6Challenge 7: Hunter Feduccia — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).7
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1-0.307 · 3-1 ball called strike· challenged
    Tommy Edman vs Michael Wacha
  2. 2-0.288 · 1-2 ball called strike
    Kyle Isbel vs Evan Phillips
  3. 3+0.195 · 2-0 strike called ball
    John Rave vs Blake Snell

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

7 pitches went to the robots · 4 overturned (ump overruled) · 3 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Nick Loftin — ump said ball, robot ruled strike: overturned.
  2. 2Ben Rortvedt — ump said strike, robot ruled ball: overturned.
  3. 3Carter Jensen — ump said strike, robot ruled strike: upheld.
  4. 4Ben Rortvedt — ump said ball, robot ruled ball: upheld.
  5. 5Tommy Edman — ump said strike, robot ruled strike: upheld.
  6. 6Michael Massey — ump said ball, robot ruled strike: overturned.
  7. 7Hunter Feduccia — ump said strike, robot ruled ball: overturned.

Our tracked-rulebook zone matched the ABS ruling on 2 of 7 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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