Blue Notes · Umpire Grade2026-06-09
“A steady night's work behind the plate.”
Umpire Grade
95.3% accurate
Run Favor
runs, TOR
ABS Overturns
of 3 reviewed
What this shows — how Alex Tosi called the 129 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
- 1-0.39▲4 · 2-2 ball called strike· challenged ✓
Bryce Harper vs Dylan Cease - 2-0.39▼7 · 2-2 ball called strike· challenged ✓
Charles McAdoo vs Orion Kerkering - 3+0.28▼2 · 1-2 strike called ball
Charles McAdoo vs Zack Wheeler
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 · 2 overturned (ump overruled) · 1 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.
- 1Bryce Harper — ump said strike, robot ruled ball: overturned.
- 2Charles McAdoo — ump said strike, robot ruled ball: overturned.
- 3Jesús Sánchez — ump said strike, robot ruled strike: upheld.
Our tracked-rulebook zone matched the ABS ruling on 3 of 3 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.