Blue Notes · Umpire Grade2026-05-27
ATL @ BOS
Home plate: Jordan Baker
“Not his sharpest evening behind the plate.”
Umpire Grade
91.4% accurate
Run Favor
runs, ATL
ABS Overturns
of 2 reviewed
What this shows — how Jordan Baker called the 116 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 106 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▲1 · 3-2 strike called ball
Ronald Acuña Jr. vs Connelly Early - 2+0.39▲3 · 2-2 strike called ball
Ozzie Albies vs Connelly Early - 3-0.30▲3 · 3-1 ball called strike
Ronald Acuña Jr. vs Connelly Early
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 · 0 overturned (ump overruled) · 2 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Chadwick Tromp — ump said ball, robot ruled ball: upheld.
- 2Mickey Gasper — ump said ball, robot ruled ball: upheld.
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.