Umpire Grade · Blue Notes
Brian O'Nora
12 games graded behind the plate.
Season Grade
92.9% avg
Avg Swing
runs / game
ABS Overturns
30/55 calls
Best game 95.8% · worst 88.2%. Grade is accuracy on taken pitches vs the rulebook zone; ABS is the Automated Ball-Strike System challenge record (how often the robots overruled him).
The games
| Game | Grade | Favor | ABS | Blue Note |
|---|---|---|---|---|
| LAA @ MIN2026-07-10 | A- | 0.3 MIN | 2/5 | The kind of night where the umpire is the least of the story. |
| BAL @ CIN2026-07-05 | B+ | 0.2 BAL | 5/7 | Hawkeye did more talking than the umpire tonight. |
| TEX @ CLE2026-06-30 | A | 0.2 TEX | 1/2 | Called it the way the rulebook drew it up. |
| CHC @ CWS2026-05-16 | B | 0.3 CWS | 5/5 | This one went to video review more than most. |
| TB @ TOR2026-05-11 | A- | 0.5 TOR | 1/4 | A steady night's work behind the plate. |
| STL @ PIT2026-04-30 | C | 1.8 PIT | 3/7 | Somebody's pitching staff sent a thank-you note. |
| DET @ CIN2026-04-26 | B- | 0.8 DET | 3/4 | Down the middle. Both dugouts had the same zone. |
| ATL @ WSH2026-04-22 | D | 0.3 ATL | 0/3 | Off the corner was close enough tonight. |
| SF @ BAL2026-04-11 | B- | 0.1 SF | 2/4 | Called a fair game and let the players decide it. |
| AZ @ NYM2026-04-07 | A- | 0.0 AZ | 3/5 | The zone kept its promises. |
| COL @ TOR2026-04-01 | B+ | 1.4 TOR | 3/6 | One side pitched to a slightly bigger plate. |
| MIN @ BAL2026-03-28 | B+ | 0.1 BAL | 2/3 | The zone stretched its legs. |