Blue Notes · Umpire Grade2026-04-13
BOS @ MIN
Home plate: Willie Traynor
“An honest evening's grade: nothing loud, nothing missed by much.”
Umpire Grade
95.5% accurate
Run Favor
runs, BOS
ABS Overturns
of 3 reviewed
What this shows — how Willie Traynor called the 157 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 150 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
strike called ballball called strikeABS overturnedABS upheld
The calls that moved the game
- 1+0.69▲9 · 3-2 strike called ball· challenged
Roman Anthony vs Garrett Acton - 2+0.13▼3 · 1-1 strike called ball
Luke Keaschall vs Jovani Morán - 3+0.10▼4 · 0-1 strike called ball
Victor Caratini vs Jovani Morán
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
3 pitches went to the robots · 1 overturned (ump overruled) · 2 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Ryan Jeffers — ump said strike, robot ruled ball: overturned.
- 2Luke Keaschall — ump said strike, robot ruled strike: upheld.
- 3Ryan Jeffers — ump said ball, robot ruled ball: upheld.
Our tracked-rulebook zone matched the ABS ruling on 1 of 3 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.