4 players are tied for the most career grand slams by an active Orioles player in the month of May, with 1 grand slam. The first three are Gunnar Henderson, Cedric Mullins and Ryan Mountcastle.
| NAME | GRANDSLAM | G | AB | R | H | 2B | 3B | HR | RBI | BB | HBP | SO | SB | CS | PA | TB | XBH | SH | SF | IBB | GIDP | AVG | OBP | SLG | OPS | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | G. Henderson | 1 | 80 | 284 | 47 | 68 | 12 | 4 | 15 | 37 | 46 | 0 | 85 | 5 | 1 | 330 | 133 | 31 | 0 | 0 | 2 | 2 | .239 | .345 | .468 | .814 |
| 2 |  | C. Mullins | 1 | 127 | 474 | 51 | 108 | 22 | 4 | 14 | 47 | 34 | 2 | 114 | 24 | 6 | 512 | 180 | 40 | 0 | 2 | 1 | 5 | .228 | .281 | .380 | .661 |
| 3 |  | R. Mountcastle | 1 | 119 | 464 | 55 | 123 | 31 | 3 | 15 | 56 | 19 | 4 | 128 | 3 | 1 | 495 | 205 | 49 | 0 | 8 | 1 | 16 | .265 | .295 | .442 | .737 |
| 4 |  | R. O'Hearn | 1 | 112 | 355 | 39 | 94 | 13 | 0 | 14 | 44 | 33 | 2 | 81 | 2 | 1 | 391 | 149 | 27 | 0 | 1 | 3 | 7 | .265 | .330 | .420 | .750 |
StatMuse has game-level data for grand slams going back to the 1920 season.
Some of the information used here was obtained free of charge from Retrosheet.
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