Blue Notes · Umpire Grade2026-04-29
BOS @ TOR
Home plate: James Jean
“Solid and unspectacular — exactly what the job asks.”
Umpire Grade
94.6% accurate
Run Favor
runs, TOR
ABS Overturns
of 3 reviewed
What this shows — how James Jean called the 130 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 123 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
- 1-0.13▲2 · 1-0 ball called strike
Andruw Monasterio vs Eric Lauer - 2+0.13▼3 · 1-0 strike called ball
Vladimir Guerrero Jr. vs Brayan Bello - 3-0.10▲2 · 0-1 ball called strike· challenged ✓
Connor Wong vs Eric Lauer
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 · 3 overturned (ump overruled) · 0 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Brandon Valenzuela — ump said strike, robot ruled ball: overturned.
- 2Brandon Valenzuela — ump said strike, robot ruled ball: overturned.
- 3Brandon Valenzuela — ump said strike, robot ruled ball: overturned.
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.