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RECORD: 3 HIT · 4 MISS · 9 OPEN · C0015 RESOLVED: MISS
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Blue Notes · Umpire Grade2026-08-25

BAL @ STL

Home plate: Cory Blaser

“A steady night's work behind the plate.”

B+
Umpire Grade
93.1% accurate
0.0
Run Favor
runs, BAL
4
ABS Overturns
of 6 reviewed

What this shows — how Cory Blaser called the 160 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 149 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: Samuel Basallo — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).1Challenge 2: Jordan Walker — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Iván Herrera — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).3Challenge 4: Leody Taveras — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).4Challenge 5: Joshua Báez — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).5Challenge 6: Coby Mayo — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).6
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.23▲5 · 0-2 strike called ball
    Leody Taveras vs Peter Strzelecki
  2. 2+0.13▼7 · 1-1 strike called ball
    José Fermín vs Yennier Cano
  3. 3+0.10▼4 · 0-1 strike called ball· challenged ✓
    Joshua Báez vs Chris Bassitt

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 · 4 overturned (ump overruled) · 2 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Samuel Basallo — ump said strike, robot ruled ball: overturned.
  2. 2Jordan Walker — ump said ball, robot ruled strike: overturned.
  3. 3Iván Herrera — ump said strike, robot ruled ball: overturned.
  4. 4Leody Taveras — ump said strike, robot ruled strike: upheld.
  5. 5Joshua Báez — ump said ball, robot ruled strike: overturned.
  6. 6Coby Mayo — ump said strike, robot ruled strike: upheld.

Our tracked-rulebook zone matched the ABS ruling on 3 of 6 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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