Blue Notes · Umpire Grade2026-04-26
ATH @ TEX
Home plate: Todd Tichenor
“The zone shrank when the pitchers needed it most.”
Umpire Grade
91.0% accurate
Run Favor
runs, ATH
ABS Overturns
of 2 reviewed
What this shows — how Todd Tichenor called the 134 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 122 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+0.30▲1 · 3-1 strike called ball
Tyler Soderstrom vs Kumar Rocker - 2+0.21▲1 · 3-0 strike called ball
Brent Rooker vs Kumar Rocker - 3+0.20▲4 · 2-1 strike called ball
Carlos Cortes vs Kumar Rocker
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 · 2 overturned (ump overruled) · 0 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Andrew McCutchen — ump said ball, robot ruled strike: overturned.
- 2Shea Langeliers — ump said strike, robot ruled ball: 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.