Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-09-12

HOU @ TB

Home plate: Mark Wegner

“Off the corner was close enough tonight.”

C+
Umpire Grade
90.5% accurate
0.3
Run Favor
runs, TB
1
ABS Overturns
of 3 reviewed

What this shows — how Mark Wegner called the 127 pitches that were taken (no swing), graded against the tracked rulebook strike zone, or, on a pitch the ABS (Automated Ball-Strike System) reviewed on a challenge, against its ruling. 115 were right. Below, only the misses are plotted, alongside every challenged pitch.

The zone, as he called it

Challenge 1: Christian Vázquez — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).1Challenge 2: Cam Smith — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).2Challenge 3: Nick Fortes — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).3
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1-0.19▼7 · 2-0 ball called strike
    Liam Hicks vs Peter Lambert
  2. 2+0.19▲9 · 2-0 strike called ball· challenged ✓
    Taylor Trammell vs Bryan Baker
  3. 3-0.13▲8 · 1-1 ball called strike
    Isaac Paredes vs Ty Johnson

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

  1. 1Christian Vázquez — ump said strike, robot ruled strike: upheld.
  2. 2Cam Smith — ump said strike, robot ruled strike: upheld.
  3. 3Nick Fortes — ump said ball, robot ruled strike: overturned.

Our tracked-rulebook zone matched the ABS ruling on 3 of 3 — a zone-definition gap (ABS grades a standardized, height-based zone). Where the two disagree, the umpire is graded on the ABS ruling.

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