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Blue Notes · Umpire Grade2026-04-16

SEA @ SD

Home plate: Brian Walsh

“Everybody has a Tuesday like this one.”

B-
Umpire Grade
91.5% accurate
0.1
Run Favor
runs, SEA
3
ABS Overturns
of 7 reviewed

What this shows — how Brian Walsh called the 141 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 129 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: J.P. Crawford — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).1Challenge 2: Xander Bogaerts — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).2Challenge 3: Luis Campusano — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).3Challenge 4: Luis Campusano — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).4Challenge 5: Cal Raleigh — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).5Challenge 6: J.P. Crawford — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).6Challenge 7: Cole Young — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).7
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.20▲1 · 2-1 strike called ball
    Brendan Donovan vs Walker Buehler
  2. 2+0.19▼2 · 2-0 strike called ball
    Jake Cronenworth vs Luis Castillo
  3. 3+0.19▼7 · 2-0 strike called ball· challenged ✓
    Fernando Tatis Jr. vs Cole Wilcox

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. 1J.P. Crawford — ump said strike, robot ruled ball: overturned.
  2. 2Xander Bogaerts — ump said strike, robot ruled ball: overturned.
  3. 3Luis Campusano — ump said ball, robot ruled ball: upheld.
  4. 4Luis Campusano — ump said ball, robot ruled ball: upheld.
  5. 5Cal Raleigh — ump said ball, robot ruled strike: overturned.
  6. 6J.P. Crawford — ump said strike, robot ruled strike: upheld.
  7. 7Cole Young — ump said strike, robot ruled strike: upheld.

Our tracked-rulebook zone matched the ABS ruling on 6 of 7 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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