Blue Notes · Umpire Grade2026-07-03
SD @ LAD
Home plate: Tripp Gibson
“The zone kept its promises.”
Umpire Grade
94.4% accurate
Run Favor
runs, LAD
ABS Overturns
of 3 reviewed
What this shows — how Tripp Gibson called the 143 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 135 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+0.21▼7 · 3-0 strike called ball
Tommy Edman vs Adrian Morejon - 2-0.19▲9 · 2-0 ball called strike
Samad Taylor vs Tanner Scott - 3+0.13▲7 · 1-1 strike called ball
Fernando Tatis Jr. vs Kyle Hurt
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
3 pitches went to the robots · 1 overturned (ump overruled) · 2 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.
- 1Jackson Merrill — ump said strike, robot ruled ball: overturned.
- 2Rodolfo Durán — ump said ball, robot ruled ball: upheld.
- 3Kyle Tucker — ump said strike, robot ruled strike: upheld.
Our tracked-rulebook zone matched the ABS ruling on 1 of 3 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.