Blue Notes · Umpire Grade2026-09-22
“You could set a watch by that zone.”
Umpire Grade
97.0% accurate
Run Favor
runs, CHC
ABS Overturns
of 8 reviewed
What this shows — how Nic Lentz called the 200 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 194 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▲7 · 2-2 strike called ball
Jakob Marsee vs Aaron Civale - 2+0.28▼4 · 1-2 strike called ball· challenged ✓
Ian Happ vs Janson Junk - 3+0.20▼10 · 2-1 strike called ball
Pedro Ramírez vs Jack Ralston
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
8 pitches went to the robots · 2 overturned (ump overruled) · 6 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.
- 1Agustín Ramírez — ump said ball, robot ruled ball: upheld.
- 2Carson Kelly — ump said ball, robot ruled ball: upheld.
- 3Agustín Ramírez — ump said ball, robot ruled strike: overturned.
- 4Nico Hoerner — ump said strike, robot ruled strike: upheld.
- 5Joe Mack — ump said ball, robot ruled ball: upheld.
- 6Carson Kelly — ump said ball, robot ruled strike: overturned.
- 7Joe Mack — ump said ball, robot ruled ball: upheld.
- 8Esteury Ruiz — ump said strike, robot ruled strike: upheld.
Our tracked-rulebook zone matched the ABS ruling on 8 of 8 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.