I don't have anything for this season, but Will Brennan had the best on-base percentage with 50+ plate appearances in the 2nd inning in 2024, with an on-base percentage of .448.
Interpreted as:
obp leaders in the second half minimum 50 plate appearances this regular season| NAME | OBP | PA | SEASON | TM | G | AB | H | 2B | 3B | HR | RBI | BB | HBP | SO | TB | XBH | SH | SF | IBB | AVG | SLG | OPS | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | W. Brennan | .448 | 58 | 2024 |  CLE | 57 | 51 | 19 | 4 | 0 | 3 | 4 | 6 | 1 | 3 | 32 | 7 | 0 | 0 | 0 | .373 | .627 | 1.076 |
| 2 |  | J. Turner | .443 | 70 | 2024 | TOT | 69 | 59 | 20 | 7 | 0 | 2 | 8 | 10 | 1 | 15 | 33 | 9 | 0 | 0 | 0 | .339 | .559 | 1.002 |
| 3 |  | I. Happ | .425 | 73 | 2024 |  CHC | 73 | 60 | 18 | 4 | 0 | 3 | 11 | 13 | 0 | 14 | 31 | 7 | 0 | 0 | 0 | .300 | .517 | .941 |
| 4 | | D. Fry | .420 | 51 | 2024 | CLE | 51 | 46 | 17 | 1 | 0 | 2 | 4 | 2 | 2 | 9 | 24 | 3 | 0 | 0 | 0 | .370 | .522 | .942 |
| 5 |  | B. Doyle | .411 | 57 | 2024 |  COL | 57 | 48 | 16 | 2 | 1 | 4 | 8 | 7 | 0 | 11 | 32 | 7 | 1 | 1 | 0 | .333 | .667 | 1.077 |
| 6 |  | P. Alonso | .397 | 63 | 2024 |  NYM | 63 | 55 | 17 | 6 | 0 | 3 | 6 | 8 | 0 | 17 | 32 | 9 | 0 | 0 | 0 | .309 | .582 | .979 |
| 7 |  | M. Conforto | .393 | 61 | 2024 |  SFG | 60 | 54 | 17 | 4 | 1 | 3 | 6 | 5 | 2 | 11 | 32 | 8 | 0 | 0 | 0 | .315 | .593 | .986 |
| 8 |  | J. Chourio | .393 | 56 | 2024 |  MIL | 56 | 52 | 18 | 2 | 0 | 3 | 13 | 4 | 0 | 12 | 29 | 5 | 0 | 0 | 0 | .346 | .558 | .951 |
| 9 |  | M. Busch | .391 | 64 | 2024 | CHC | 64 | 53 | 15 | 5 | 0 | 2 | 4 | 7 | 3 | 15 | 26 | 7 | 0 | 1 | 0 | .283 | .491 | .881 |
| 10 |  | D. Peralta | .389 | 54 | 2024 |  SDP | 54 | 50 | 17 | 1 | 0 | 1 | 4 | 4 | 0 | 11 | 21 | 2 | 0 | 0 | 0 | .340 | .420 | .809 |
| 11 |  | J. Soler | .386 | 57 | 2024 | TOT | 57 | 48 | 14 | 7 | 0 | 3 | 10 | 8 | 0 | 13 | 30 | 10 | 0 | 1 | 0 | .292 | .625 | 1.011 |
| 12 |  | A. Wells | .385 | 52 | 2024 |  NYY | 52 | 44 | 12 | 5 | 0 | 2 | 3 | 7 | 1 | 7 | 23 | 7 | 0 | 0 | 0 | .273 | .523 | .907 |
| 13 |  | D. Swanson | .384 | 99 | 2024 | CHC | 99 | 87 | 28 | 4 | 0 | 4 | 13 | 10 | 0 | 29 | 44 | 8 | 0 | 2 | 0 | .322 | .506 | .890 |
| 14 |  | L. Nootbaar | .377 | 53 | 2024 |  STL | 53 | 45 | 12 | 4 | 0 | 1 | 3 | 8 | 0 | 10 | 19 | 5 | 0 | 0 | 0 | .267 | .422 | .800 |
| 15 |  | T. Stephenson | .377 | 53 | 2024 |  CIN | 53 | 48 | 15 | 1 | 0 | 3 | 4 | 4 | 1 | 6 | 25 | 4 | 0 | 0 | 0 | .313 | .521 | .898 |
| 16 |  | D. Varsho | .377 | 61 | 2024 |  TOR | 61 | 54 | 16 | 5 | 4 | 3 | 11 | 7 | 0 | 16 | 38 | 12 | 0 | 0 | 0 | .296 | .704 | 1.081 |
| 17 |  | J. Westburg | .377 | 69 | 2024 |  BAL | 67 | 64 | 21 | 4 | 1 | 5 | 12 | 3 | 2 | 13 | 42 | 10 | 0 | 0 | 0 | .328 | .656 | 1.033 |
| 18 |  | W. Castro | .377 | 77 | 2024 |  MIN | 76 | 64 | 17 | 6 | 0 | 4 | 13 | 7 | 5 | 15 | 35 | 10 | 0 | 1 | 0 | .266 | .547 | .923 |
| 19 | | R. Jeffers | .375 | 56 | 2024 | MIN | 55 | 52 | 17 | 4 | 0 | 2 | 6 | 4 | 0 | 13 | 27 | 6 | 0 | 0 | 0 | .327 | .519 | .894 |
| 20 |  | S. Frelick | .375 | 80 | 2024 | MIL | 80 | 76 | 26 | 3 | 0 | 1 | 6 | 4 | 0 | 7 | 32 | 4 | 0 | 0 | 0 | .342 | .421 | .796 |
| 21 | | J. Ortiz | .375 | 80 | 2024 | MIL | 80 | 74 | 24 | 7 | 1 | 4 | 17 | 6 | 0 | 17 | 45 | 12 | 0 | 0 | 0 | .324 | .608 | .983 |
| 22 |  | A. Santander | .375 | 56 | 2024 | BAL | 56 | 48 | 14 | 2 | 0 | 4 | 8 | 7 | 0 | 11 | 28 | 6 | 0 | 1 | 0 | .292 | .583 | .958 |
| 23 |  | J. Chisholm Jr. | .375 | 64 | 2024 | TOT | 64 | 58 | 19 | 5 | 1 | 3 | 8 | 5 | 0 | 12 | 35 | 9 | 0 | 1 | 0 | .328 | .603 | .978 |
| 24 |  | D. Moore | .373 | 59 | 2024 |  SEA | 58 | 48 | 13 | 6 | 2 | 0 | 6 | 8 | 1 | 16 | 23 | 8 | 0 | 2 | 0 | .271 | .479 | .852 |
| 25 | | C. Cowser | .372 | 86 | 2024 | BAL | 86 | 73 | 19 | 7 | 2 | 3 | 7 | 11 | 2 | 19 | 39 | 12 | 0 | 0 | 0 | .260 | .534 | .906 |
StatMuse has event-level data for on-base percentage and plate appearances going back to the 1974 season.
Some of the information used here was obtained free of charge from Retrosheet.
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