Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-06-25

ATH @ SF

Home plate: Paul Clemons

Corner-to-corner and then some.

B-
Umpire Grade
91.7% accurate
0.1
Run Favor
runs, ATH
4
ABS Overturns
of 5 reviewed

What this shows — how Paul Clemons called the 168 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 154 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: Lawrence Butler — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).1Challenge 2: Jonah Heim — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Matt Chapman — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).3Challenge 4: Jonah Heim — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).4Challenge 5: Tyler Soderstrom — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).5
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1-0.697 · 3-2 ball called strike· challenged
    Matt Chapman vs Geoff Hartlieb
  2. 2+0.216 · 3-0 strike called ball
    Willy Adames vs Matt Krook
  3. 3-0.203 · 2-1 ball called strike
    Nick Kurtz vs Landen Roupp

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

5 pitches went to the robots · 4 overturned (ump overruled) · 1 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Lawrence Butler — ump said strike, robot ruled strike: upheld.
  2. 2Jonah Heim — ump said ball, robot ruled strike: overturned.
  3. 3Matt Chapman — ump said strike, robot ruled ball: overturned.
  4. 4Jonah Heim — ump said ball, robot ruled strike: overturned.
  5. 5Tyler Soderstrom — ump said strike, robot ruled ball: overturned.

Our tracked-rulebook zone matched the ABS ruling on 3 of 5 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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