Blue Notes · Umpire Grade2026-03-31
ATH @ ATL
Home plate: Mark Ripperger
“The black wasn't in play tonight.”
Umpire Grade
91.5% accurate
Run Favor
runs, ATL
ABS Overturns
of 2 reviewed
What this shows — how Mark Ripperger called the 142 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 130 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+0.28▲7 · 1-2 strike called ball
Nick Kurtz vs Martín Pérez - 2-0.19▼3 · 2-0 ball called strike
Drake Baldwin vs Aaron Civale - 3+0.13▼1 · 1-1 strike called ball
Drake Baldwin vs Aaron Civale
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
2 pitches went to the robots · 1 overturned (ump overruled) · 1 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Shea Langeliers — ump said ball, robot ruled ball: upheld.
- 2Brent Rooker — ump said ball, robot ruled strike: overturned.
Our tracked-rulebook zone matched the ABS ruling on 2 of 2 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.