Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-06-12

CHC @ SF

Home plate: Todd Tichenor

ABS had a long evening on this one.

B
Umpire Grade
92.1% accurate
2.0
Run Favor
runs, CHC
5
ABS Overturns
of 6 reviewed

What this shows — how Todd Tichenor called the 152 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 140 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 strike (OVERTURNED — ump overruled).1Challenge 2: Daniel Susac — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Daniel Susac — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).3Challenge 4: Daniel Susac — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).4Challenge 5: Daniel Susac — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).5Challenge 6: Carson Kelly — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).6
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.692 · 3-2 strike called ball· challenged
    Ian Happ vs Landen Roupp
  2. 2+0.693 · 3-2 strike called ball· challenged
    Carson Kelly vs Landen Roupp
  3. 3+0.391 · 2-2 strike called ball· challenged
    Michael Busch 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

6 pitches went to the robots · 5 overturned (ump overruled) · 1 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 strike: overturned.
  2. 2Daniel Susac — ump said ball, robot ruled strike: overturned.
  3. 3Daniel Susac — ump said ball, robot ruled strike: overturned.
  4. 4Daniel Susac — ump said ball, robot ruled ball: upheld.
  5. 5Daniel Susac — ump said ball, robot ruled strike: overturned.
  6. 6Carson Kelly — ump said ball, robot ruled strike: overturned.

Our tracked-rulebook zone matched the ABS ruling on 5 of 6 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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