Blue Notes · Umpire Grade2026-04-21
CIN @ TB
Home plate: Tripp Gibson
“A workmanlike night — nothing to frame, nothing to fix.”
Umpire Grade
94.3% accurate
Run Favor
runs, TB
ABS Overturns
of 4 reviewed
What this shows — how Tripp Gibson called the 228 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 215 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▲6 · 3-1 ball called strike
Ke'Bryan Hayes vs Griffin Jax - 2-0.20▼3 · 2-1 ball called strike
Yandy Díaz vs Chase Burns - 3-0.13▲1 · 1-0 ball called strike
Eugenio Suárez vs Steven Matz
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.
- 1Hunter Feduccia — ump said ball, robot ruled ball: upheld.
- 2Ke'Bryan Hayes — ump said ball, robot ruled strike: overturned.
- 3Hunter Feduccia — ump said ball, robot ruled ball: upheld.
- 4Tyler Stephenson — ump said ball, robot ruled ball: 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.