Blue Notes · Umpire Grade2026-06-02
NYM @ SEA
Home plate: Dan Iassogna
“Quietly excellent. The best umpiring is the kind you forget was there.”
Umpire Grade
95.8% accurate
Run Favor
runs, NYM
ABS Overturns
of 1 reviewed
What this shows — how Dan Iassogna called the 142 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 136 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▲1 · 2-2 strike called ball
Carson Benge vs Logan Gilbert - 2+0.23▲5 · 0-2 strike called ball
Hayden Senger vs Logan Gilbert - 3+0.13▼4 · 1-0 strike called ball
Patrick Wisdom vs Jonah Tong
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
1 pitch went to the robots · 0 overturned (ump overruled) · 1 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Brett Baty — ump said strike, robot ruled strike: upheld.
Our tracked-rulebook zone matched the ABS ruling on 1 of 1 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.