Fever BaseballFuture Value Radar (FVR) · On the record
RECORD: 0 HIT · 0 MISS · 12 OPEN · FIRST CALL RESOLVES AUG 12
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Blue Notes · Umpire Grade2026-04-06

SEA @ TEX

Home plate: Alex MacKay

“Pitchers earned every strike the hard way.”

B-
Umpire Grade
91.5% accurate
0.8
Run Favor
runs, TEX
1
ABS Overturns
of 2 reviewed

What this shows — how Alex MacKay called the 141 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 129 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: Leo Rivas — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).1Challenge 2: Danny Jansen — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).2
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.28▼2 · 1-2 strike called ball
    Danny Jansen vs Logan Gilbert
  2. 2-0.13▲1 · 1-0 ball called strike
    Julio Rodríguez vs Jacob deGrom
  3. 3-0.13▼1 · 1-0 ball called strike
    Wyatt Langford vs Logan Gilbert

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

2 pitches went to the robots · 1 overturned (ump overruled) · 1 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.

  1. 1Leo Rivas — ump said strike, robot ruled strike: upheld.
  2. 2Danny Jansen — ump said strike, robot ruled ball: overturned.

Our tracked-rulebook zone matched the ABS ruling on 1 of 2 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.