Tony Mullane has the lowest on-base percentage by a pitcher in a season, with an on-base percentage of .339 in 1884.
Interpreted as:
lowest on base percentage with a minimum of 3.1 PA per team game by a pitcher in a season| NAME | OBP | SEASON | TM | G | AB | R | H | 2B | 3B | HR | RBI | BB | HBP | SO | SB | CS | PA | TB | XBH | SH | SF | IBB | GIDP | AVG | SLG | OPS | WRC | WRAA | WOBA | WRC+ | BRAA | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | T. Mullane | .339 | 1884 |  TOL | 95 | 352 | 49 | 97 | 19 | 3 | 3 | 33 | 1 | 386 | 131 | 25 | .276 | .372 | .712 | 72 | 15.3 | .330 | 122 | 12.7 |
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SFG 
