Blue Notes · Umpire Grade2026-04-13
“A pitcher's-nightmare zone — you had to paint it to get it.”
Umpire Grade
91.8% accurate
Run Favor
runs, LAD
ABS Overturns
of 5 reviewed
What this shows — how Nic Lentz called the 122 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 112 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▼1 · 1-1 strike called ball
Kyle Tucker vs David Peterson - 2+0.13▼5 · 1-1 strike called ball
Will Smith vs David Peterson - 3-0.13▲9 · 1-1 ball called strike· challenged ✓
Tyrone Taylor vs Tanner Scott
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 · 3 overturned (ump overruled) · 2 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Mark Vientos — ump said strike, robot ruled strike: upheld.
- 2Will Smith — ump said strike, robot ruled ball: overturned.
- 3Francisco Alvarez — ump said strike, robot ruled ball: overturned.
- 4Max Muncy — ump said strike, robot ruled strike: upheld.
- 5Will Smith — ump said strike, robot ruled ball: overturned.
Our tracked-rulebook zone matched the ABS ruling on 3 of 5 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.