Blue Notes · Umpire Grade2026-04-18
LAD @ COL
Home plate: Dan Iassogna
“A steady night's work behind the plate.”
Umpire Grade
94.8% accurate
Run Favor
runs, COL
ABS Overturns
of 5 reviewed
What this shows — how Dan Iassogna called the 134 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 127 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+0.19▼3 · 2-0 strike called ball
Edouard Julien vs Emmet Sheehan - 2+0.10▲3 · 0-1 strike called ball
Teoscar Hernández vs Ryan Feltner - 3+0.10▲8 · 0-1 strike called ball
Freddie Freeman vs Jaden Hill
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 · 4 overturned (ump overruled) · 1 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Edouard Julien — ump said ball, robot ruled strike: overturned.
- 2Hunter Goodman — ump said strike, robot ruled ball: overturned.
- 3Teoscar Hernández — ump said ball, robot ruled strike: overturned.
- 4Hunter Goodman — ump said strike, robot ruled ball: overturned.
- 5Hunter Goodman — ump said ball, robot ruled ball: upheld.
Our tracked-rulebook zone matched the ABS ruling on 1 of 5 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.