Billy O'Brien was a first baseman in MLB history. Across 356 career games, with a .256 batting average and 32 home runs. This page covers season stats, team history, and career profile.
Season-by-season performance, contract terms, and the complete archive.
| Year | Team | G | AB | R | H | 2B | 3B | HR | RBI | SB | BB | SO | AVG | OBP | SLG | OPS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1884 | KCU | 4 | 17 | 2 | 4 | 0 | 0 | 0 | 0 | .235 | .235 | .235 | .471 | |||
| 1884 | SPU | 8 | 30 | 1 | 7 | 3 | 0 | 0 | 0 | .233 | .233 | .333 | .567 | |||
| 1887 | WS8 | 113 | 453 | 71 | 126 | 16 | 12 | 19 | 73 | 11 | 21 | 17 | .278 | .317 | .492 | .810 |
| 1888 | WS8 | 133 | 528 | 42 | 119 | 15 | 2 | 9 | 66 | 10 | 9 | 70 | .225 | .238 | .313 | .551 |
| 1889 | WS8 | 2 | 8 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | .000 | .111 | .000 | .111 |
| 1890 | BR4 | 96 | 388 | 47 | 108 | 25 | 8 | 4 | 67 | 5 | 28 | .278 | .332 | .415 | .747 | |
| Career Totals | — | 356 | 1424 | 164 | 364 | 59 | 22 | 32 | 206 | 26 | 59 | 88 | .256 | .289 | .395 | .684 |
| Year | Team | W | L | ERA | G | GS | SV | IP | H | ER | BB | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1884 | SPU | 1 | 0 | 1.80 | 2 | 0 | 0 | 10.0 | 8 | 2 | 3 | 7 | 1.10 |
| Career Totals | — | 1 | 0 | 1.80 | 2 | 0 | 0 | 10.0 | 8 | 2 | 3 | 7 | 1.10 |