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RECORD: 0 HIT · 0 MISS · 12 OPEN · FIRST CALL RESOLVES AUG 12
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Blue Notes · Umpire Grade2026-05-16

BOS @ ATL

Home plate: Nic Lentz

“The zone kept its promises.”

A
Umpire Grade
95.4% accurate
0.6
Run Favor
runs, BOS
2
ABS Overturns
of 5 reviewed

What this shows — how Nic Lentz called the 109 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 104 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: Masataka Yoshida — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).1Challenge 2: Sandy León — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).2Challenge 3: Wilyer Abreu — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).3Challenge 4: Ceddanne Rafaela — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).4Challenge 5: Sandy León — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).5
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.28▲5 · 1-2 strike called ball
    Caleb Durbin vs Bryce Elder
  2. 2+0.23▲5 · 0-2 strike called ball
    Caleb Durbin vs Bryce Elder
  3. 3+0.09▲2 · 0-0 strike called ball
    Marcelo Mayer vs Bryce Elder

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

5 pitches went to the robots · 2 overturned (ump overruled) · 3 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.

  1. 1Masataka Yoshida — ump said strike, robot ruled strike: upheld.
  2. 2Sandy León — ump said ball, robot ruled ball: upheld.
  3. 3Wilyer Abreu — ump said ball, robot ruled strike: overturned.
  4. 4Ceddanne Rafaela — ump said strike, robot ruled strike: upheld.
  5. 5Sandy León — ump said strike, robot ruled ball: overturned.

Our tracked-rulebook zone matched the ABS ruling on 3 of 5 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.