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Blue Notes · Umpire Grade2026-09-22

CLE @ BOS

Home plate: Ramon De Jesus

“ABS had a long evening on this one.”

B-
Umpire Grade
91.1% accurate
0.4
Run Favor
runs, BOS
5
ABS Overturns
of 8 reviewed

What this shows — how Ramon De Jesus called the 179 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 163 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: Adley Rutschman — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Austin Hedges — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Adley Rutschman — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).3Challenge 4: Austin Hedges — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).4Challenge 5: Petey Halpin — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).5Challenge 6: Adley Rutschman — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).6Challenge 7: Isiah Kiner-Falefa — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).7Challenge 8: Austin Hedges — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).8
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1-0.39▲5 · 2-2 ball called strike
    Travis Bazzana vs Payton Tolle
  2. 2+0.28▼6 · 1-2 strike called ball· challenged
    Adley Rutschman vs Tim Herrin
  3. 3+0.21▲9 · 3-0 strike called ball· challenged ✓
    Austin Hedges vs Erik Miller

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

  1. 1Adley Rutschman — ump said ball, robot ruled strike: overturned.
  2. 2Austin Hedges — ump said ball, robot ruled strike: overturned.
  3. 3Adley Rutschman — ump said ball, robot ruled strike: overturned.
  4. 4Austin Hedges — ump said ball, robot ruled ball: upheld.
  5. 5Petey Halpin — ump said strike, robot ruled ball: overturned.
  6. 6Adley Rutschman — ump said ball, robot ruled strike: overturned.
  7. 7Isiah Kiner-Falefa — ump said strike, robot ruled strike: upheld.
  8. 8Austin Hedges — ump said ball, robot ruled ball: upheld.

Our tracked-rulebook zone matched the ABS ruling on 7 of 8 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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