Tommy O'Brien
Pittsburgh Pirates 1943–1945; Boston Red Sox 1949–1950; Washington Senators 1950
Percentile snapshot
No qualified season. This player never reached the qualification floor — 3.1 plate appearances, or one inning, per game his team played — in any archived season, so there is no season population to rank him inside.
Career, era-adjusted
sWAR measured against every career in history, 24,011 of them. Only era-adjusted career stats carry a percentile — a raw career total gets a rank instead, because pooling the 1890s with the 2020s is a choice, not a measurement.
Season by season
Batting
| Season | G | PA | AB | R | H | 2B | 3B | HR | RBI | BB | SO | SB | CS | BA | OBP | SLG | OPS | wRC+ | OPS+ | wOBA | sWAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1943 | 89 | 252 | 232 | 35 | 72 | 12 | 7 | 2 | 26 | 15 | 24 | 0 | 0 | .310 | .352 | .448 | .801 | 126.3 | 126.8 | .375 | 1.4 |
| 1944 | 85 | 178 | 156 | 27 | 39 | 6 | 2 | 3 | 20 | 21 | 12 | 1 | 0 | .250 | .343 | .372 | .714 | 99.8 | 97.7 | .340 | 0.3 |
| 1945 | 58 | 175 | 161 | 23 | 54 | 6 | 5 | 0 | 18 | 9 | 13 | 0 | 0 | .335 | .374 | .435 | .809 | 120.0 | 120.6 | .379 | 0.7 |
| 1949 | 49 | 149 | 125 | 24 | 28 | 5 | 0 | 3 | 10 | 21 | 12 | 1 | 0 | .224 | .336 | .336 | .672 | 73.0 | 73.0 | .330 | -0.1 |
| 1950 | 12 | 44 | 40 | 1 | 5 | 1 | 0 | 0 | 4 | 4 | 5 | 0 | 0 | .125 | .205 | .150 | .355 | -18.7 | -10.7 | .184 | -0.5 |
Career totals
A total is called out only where it ranks in the all-time top 500; hover a figure for its rank and the size of the field it was ranked in. Ranks are absolute facts and carry no percentile — the population for "career home runs" would be an editorial choice, and the rank is not.
Best games
Batting
| Date | Game | AB | R | H | 2B | 3B | HR | RBI | BB | TB |
|---|---|---|---|---|---|---|---|---|---|---|
| 1944-07-14 | PIT @ CHC Gameday | 4 | 2 | 3 | 0 | 0 | 2 | 3 | 0 | 9 |
| 1943-06-06 | SF @ PIT Gameday | 5 | 2 | 5 | 1 | 1 | 0 | 1 | 0 | 8 |
| 1943-07-27 | SF @ PIT Gameday | 5 | 2 | 3 | 0 | 0 | 1 | 3 | 0 | 6 |
| 1944-05-29 | PIT @ PHI Gameday | 5 | 2 | 3 | 1 | 1 | 0 | 0 | 0 | 6 |
| 1949-07-09 | ATH @ BOS Gameday | 3 | 2 | 2 | 1 | 0 | 1 | 1 | 1 | 6 |
Pitching
| Date | Game | IP | H | R | ER | BB | SO | HR |
|---|---|---|---|---|---|---|---|---|
| 1943-04-21 | PIT @ CHC Gameday | 0.0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1943-04-22 | PIT @ CHC Gameday | 0.0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1943-04-24 | PIT @ CHC Gameday | 0.0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1943-04-25 | PIT @ CHC Gameday | 0.0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1943-04-27 | CIN @ PIT Gameday | 0.0 | 0 | 0 | 0 | 0 | 0 | 0 |
Ranked from our own play-by-play game log, which begins in 1901 — not from the record book, so a career played outside it shows nothing here rather than a short list.