I couldn't find anything for this season, but Aaron Judge had the highest on-base percentage with 45+ plate appearances against the Red Sox in 2024, with an on-base percentage of .450.
Interpreted as:
best current player obp versus red sox minimum 45 plate appearances this regular season| NAME | OBP | PA | SEASON | TM | G | AB | R | H | 2B | 3B | HR | RBI | BB | HBP | SO | SB | CS | TB | XBH | SH | SF | IBB | GIDP | AVG | SLG | OPS | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | A. Judge | .450 | 60 | 2024 |  NYY | 13 | 49 | 13 | 16 | 3 | 0 | 5 | 15 | 11 | 0 | 14 | 1 | 0 | 34 | 8 | 0 | 0 | 0 | 2 | .327 | .694 | 1.144 |
| 2 |  | C. Mullins | .385 | 52 | 2024 |  BAL | 13 | 42 | 10 | 10 | 0 | 1 | 3 | 8 | 8 | 2 | 9 | 5 | 0 | 21 | 4 | 0 | 0 | 0 | 0 | .238 | .500 | .885 |
| 3 |  | J. Aranda | .378 | 45 | 2024 |  TBR | 12 | 37 | 7 | 9 | 1 | 0 | 0 | 1 | 7 | 1 | 8 | 0 | 0 | 10 | 1 | 0 | 0 | 0 | 1 | .243 | .270 | .648 |
| 4 |  | V. Guerrero Jr. | .375 | 56 | 2024 |  TOR | 13 | 53 | 6 | 18 | 8 | 0 | 1 | 12 | 3 | 0 | 5 | 0 | 0 | 29 | 9 | 0 | 0 | 0 | 1 | .340 | .547 | .922 |
| 5 | | J. Lowe | .365 | 52 | 2024 | TBR | 13 | 48 | 10 | 15 | 4 | 0 | 3 | 7 | 4 | 0 | 16 | 0 | 0 | 28 | 7 | 0 | 0 | 1 | 0 | .313 | .583 | .949 |
| 6 |  | A. Santander | .360 | 50 | 2024 | BAL | 11 | 43 | 7 | 11 | 1 | 0 | 3 | 7 | 6 | 1 | 7 | 0 | 0 | 21 | 4 | 0 | 0 | 1 | 1 | .256 | .488 | .848 |
| 7 |  | C. Cowser | .345 | 58 | 2024 | BAL | 13 | 51 | 9 | 14 | 4 | 1 | 2 | 12 | 4 | 2 | 17 | 1 | 0 | 26 | 7 | 0 | 1 | 0 | 2 | .275 | .510 | .855 |
| 8 |  | G. Henderson | .328 | 61 | 2024 | BAL | 13 | 55 | 12 | 14 | 4 | 1 | 5 | 12 | 6 | 0 | 19 | 1 | 0 | 35 | 10 | 0 | 0 | 0 | 0 | .255 | .636 | .964 |
| 9 |  | A. Verdugo | .314 | 51 | 2024 | NYY | 11 | 48 | 9 | 14 | 4 | 0 | 2 | 7 | 2 | 0 | 8 | 0 | 0 | 24 | 6 | 0 | 1 | 0 | 0 | .292 | .500 | .814 |
| 10 |  | J. Soto | .311 | 61 | 2024 | NYY | 13 | 50 | 9 | 8 | 2 | 0 | 2 | 4 | 11 | 0 | 10 | 0 | 0 | 16 | 4 | 0 | 0 | 0 | 0 | .160 | .320 | .631 |
| 11 |  | G. Torres | .306 | 49 | 2024 | NYY | 11 | 45 | 5 | 11 | 2 | 0 | 2 | 8 | 4 | 0 | 9 | 0 | 0 | 19 | 4 | 0 | 0 | 0 | 1 | .244 | .422 | .728 |
| 12 | | R. O'Hearn | .302 | 53 | 2024 | BAL | 13 | 46 | 7 | 9 | 1 | 0 | 0 | 0 | 7 | 0 | 5 | 0 | 0 | 10 | 1 | 0 | 0 | 0 | 0 | .196 | .217 | .519 |
| 13 |  | Y. DÃaz | .300 | 50 | 2024 | TBR | 12 | 44 | 5 | 9 | 2 | 0 | 1 | 5 | 5 | 1 | 9 | 0 | 0 | 14 | 3 | 0 | 0 | 0 | 1 | .205 | .318 | .618 |
| 14 |  | G. Springer | .286 | 49 | 2024 | TOR | 12 | 45 | 4 | 10 | 2 | 0 | 3 | 6 | 3 | 1 | 9 | 1 | 0 | 21 | 5 | 0 | 0 | 0 | 1 | .222 | .467 | .752 |
| 15 |  | A. Rutschman | .229 | 48 | 2024 | BAL | 11 | 46 | 3 | 10 | 2 | 0 | 1 | 6 | 1 | 0 | 8 | 0 | 0 | 15 | 3 | 0 | 1 | 0 | 0 | .217 | .326 | .555 |
| 16 |  | A. Volpe | .193 | 57 | 2024 | NYY | 13 | 55 | 7 | 9 | 1 | 0 | 1 | 3 | 2 | 0 | 15 | 3 | 0 | 13 | 2 | 0 | 0 | 0 | 1 | .164 | .236 | .429 |
StatMuse has game-level data for on-base percentage going back to the 1908 season.
Some of the information used here was obtained free of charge from Retrosheet.
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