Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-08-09

DET @ SF

Home plate: Paul Clemons

The zone leaned, and the ledger noticed.

B
Umpire Grade
92.7% accurate
1.2
Run Favor
runs, DET
4
ABS Overturns
of 8 reviewed

What this shows — how Paul Clemons called the 164 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 152 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: Daniel Susac — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).1Challenge 2: Daniel Susac — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).2Challenge 3: Osleivis Basabe — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).3Challenge 4: Kevin McGonigle — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).4Challenge 5: Gleyber Torres — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).5Challenge 6: Eduardo Valencia — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).6Challenge 7: Kevin McGonigle — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).7Challenge 8: Kevin McGonigle — 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+0.693 · 3-2 strike called ball
    Eduardo Valencia vs Logan Webb
  2. 2-0.2310 · 0-2 ball called strike
    Christian Koss vs Tyler Holton
  3. 3-0.217 · 3-0 ball called strike
    Drew Gilbert vs Kyle Finnegan

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. 1Daniel Susac — ump said ball, robot ruled ball: upheld.
  2. 2Daniel Susac — ump said strike, robot ruled ball: overturned.
  3. 3Osleivis Basabe — ump said strike, robot ruled strike: upheld.
  4. 4Kevin McGonigle — ump said ball, robot ruled strike: overturned.
  5. 5Gleyber Torres — ump said ball, robot ruled strike: overturned.
  6. 6Eduardo Valencia — ump said ball, robot ruled ball: upheld.
  7. 7Kevin McGonigle — ump said ball, robot ruled strike: overturned.
  8. 8Kevin McGonigle — 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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