Blue Notes · Umpire Grade2026-04-29
DET @ ATL
Home plate: Will Little
“The zone kept its promises.”
Umpire Grade
92.4% accurate
Run Favor
runs, DET
ABS Overturns
of 4 reviewed
What this shows — how Will Little called the 144 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 133 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
- 1-0.69▼8 · 3-2 ball called strike· challenged ✓
Dominic Smith vs Kyle Finnegan - 2+0.23▼8 · 0-2 strike called ball
Dominic Smith vs Kyle Finnegan - 3+0.13▲1 · 1-1 strike called ball
Kevin McGonigle vs JR Ritchie
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
4 pitches went to the robots · 2 overturned (ump overruled) · 2 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.
- 1Dillon Dingler — ump said strike, robot ruled strike: upheld.
- 2Jonah Heim — ump said ball, robot ruled ball: upheld.
- 3Mike Yastrzemski — ump said strike, robot ruled ball: overturned.
- 4Dominic Smith — ump said strike, robot ruled ball: overturned.
Our tracked-rulebook zone matched the ABS ruling on 3 of 4 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.