Blue Notes · Umpire Grade2026-06-15
KC @ WSH
Home plate: Chad Whitson
“Pitchers earned every strike the hard way.”
Umpire Grade
88.7% accurate
Run Favor
runs, KC
ABS Overturns
of 4 reviewed
What this shows — how Chad Whitson called the 150 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+0.39▲9 · 2-2 strike called ball
Lane Thomas vs Gus Varland - 2+0.28▲7 · 1-2 strike called ball
Isaac Collins vs Brad Lord - 3+0.23▲4 · 0-2 strike called ball
Isaac Collins vs Andrew Alvarez
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 · 1 overturned (ump overruled) · 3 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Keibert Ruiz — ump said ball, robot ruled ball: upheld.
- 2Keibert Ruiz — ump said ball, robot ruled ball: upheld.
- 3Nick Loftin — ump said ball, robot ruled strike: overturned.
- 4Isaac Collins — ump said strike, robot ruled strike: upheld.
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.