Blue Notes · Umpire Grade2026-06-21
PIT @ COL
Home plate: Todd Tichenor
“Expanded the plate a touch past its 17 inches.”
Umpire Grade
92.3% accurate
Run Favor
runs, COL
ABS Overturns
of 6 reviewed
What this shows — how Todd Tichenor called the 142 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 131 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▲2 · 2-2 ball called strike
Nick Gonzales vs Michael Lorenzen - 2-0.19▲5 · 2-0 ball called strike
Spencer Horwitz vs Michael Lorenzen - 3-0.13▲8 · 1-0 ball called strike
Tyler Callihan vs John Brebbia
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
6 pitches went to the robots · 4 overturned (ump overruled) · 2 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Ryan O'Hearn — ump said strike, robot ruled strike: upheld.
- 2Cole Carrigg — ump said ball, robot ruled strike: overturned.
- 3Brett Sullivan — ump said strike, robot ruled ball: overturned.
- 4Spencer Horwitz — ump said strike, robot ruled strike: upheld.
- 5Willi Castro — ump said ball, robot ruled strike: overturned.
- 6Braxton Fulford — ump said ball, robot ruled strike: overturned.
Our tracked-rulebook zone matched the ABS ruling on 3 of 6 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.