Blue Notes · Umpire Grade2026-04-25
ATH @ TEX
Home plate: Austin Jones
“A steady night's work behind the plate.”
Umpire Grade
93.6% accurate
Run Favor
runs, ATH
ABS Overturns
of 2 reviewed
What this shows — how Austin Jones called the 125 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 117 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▲3 · 2-2 strike called ball· challenged
Nick Kurtz vs MacKenzie Gore - 2+0.13▼5 · 1-1 strike called ball
Brandon Nimmo vs Jeffrey Springs - 3+0.13▲3 · 1-0 strike called ball
Darell Hernaiz vs MacKenzie Gore
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.
- 1Danny Jansen — ump said ball, robot ruled ball: upheld.
- 2Darell Hernaiz — ump said ball, robot ruled strike: overturned.
Our tracked-rulebook zone matched the ABS ruling on 0 of 2 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.