Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-08-27

COL @ WSH

Home plate: Tripp Gibson

“The zone leaned, and the ledger noticed.”

B
Umpire Grade
92.2% accurate
1.1
Run Favor
runs, COL
3
ABS Overturns
of 7 reviewed

What this shows — how Tripp Gibson called the 166 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 153 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: Keibert Ruiz — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Ezequiel Tovar — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).2Challenge 3: Brady House — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).3Challenge 4: Keibert Ruiz — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).4Challenge 5: Cole Carrigg — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).5Challenge 6: TJ Rumfield — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).6Challenge 7: Keibert Ruiz — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).7
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.69▲2 · 3-2 strike called ball
    Zac Veen vs Jake Irvin
  2. 2+0.28▲1 · 1-2 strike called ball· challenged ✓
    Willi Castro vs Jake Irvin
  3. 3-0.23▲2 · 0-2 ball called strike· challenged ✓
    Ezequiel Tovar vs Jake Irvin

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

  1. 1Keibert Ruiz — ump said ball, robot ruled strike: overturned.
  2. 2Ezequiel Tovar — ump said strike, robot ruled ball: overturned.
  3. 3Brady House — ump said strike, robot ruled strike: upheld.
  4. 4Keibert Ruiz — ump said ball, robot ruled strike: overturned.
  5. 5Cole Carrigg — ump said strike, robot ruled strike: upheld.
  6. 6TJ Rumfield — ump said strike, robot ruled strike: upheld.
  7. 7Keibert Ruiz — ump said ball, robot ruled ball: upheld.

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

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