Jack O'Connor
Minnesota Twins 1981–1984; Montreal Expos 1985; Baltimore Orioles 1987
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1981 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | — | — | — | — | — | — | — | -0.5 |
| 1982 | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | — | — | — | — | — | — | — | 1.1 |
| 1983 | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | — | — | — | — | — | — | — | -0.7 |
| 1984 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | — | — | — | — | — | — | — | 0.2 |
| 1985 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | — | — | — | — | — | — | — | -0.2 |
| 1987 | 29 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | — | — | — | — | — | — | — | 0.5 |
Pitching
| Season | G | GS | W | L | SV | CG | SHO | H | ER | BB | SO | HR | IP | ERA | WHIP | K/9 | FIP | FIP- | ERA+ | sWAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1981 | 28 | 0 | 3 | 2 | 0 | 0 | 0 | 46 | 23 | 30 | 16 | 3 | 35.3 | 5.86 | 2.151 | 4.08 | 5.46 | 143.5 | 64.9 | -0.5 |
| 1982 | 23 | 19 | 8 | 9 | 0 | 6 | 1 | 122 | 60 | 57 | 56 | 13 | 126.0 | 4.29 | 1.421 | 4.00 | 4.55 | 107.9 | 98.3 | 1.1 |
| 1983 | 27 | 8 | 2 | 3 | 0 | 0 | 0 | 107 | 54 | 36 | 56 | 13 | 83.0 | 5.86 | 1.723 | 6.07 | 4.81 | 114.2 | 72.0 | -0.7 |
| 1984 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 4 | 0 | 1 | 4.7 | 1.93 | 1.071 | 0.00 | 8.10 | 194.8 | 215.7 | 0.2 |
| 1985 | 20 | 1 | 0 | 2 | 0 | 0 | 0 | 21 | 13 | 13 | 16 | 1 | 23.7 | 4.94 | 1.437 | 6.08 | 3.46 | 101.0 | 69.3 | -0.2 |
| 1987 | 29 | 0 | 1 | 1 | 2 | 0 | 0 | 46 | 22 | 23 | 33 | 5 | 46.0 | 4.30 | 1.500 | 6.46 | 4.35 | 98.6 | 102.5 | 0.5 |
sWAR is the season TOTAL for a player who both hit and pitched: the record book carries one figure per season, not a split, so the same number appears on both lines rather than being counted twice.
Career totals
Batting
Pitching
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1985-06-17 | PIT @ WSH Gameday | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1985-06-26 | WSH @ PIT Gameday | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1985-07-02 | STL @ WSH Gameday | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1985-07-04 | WSH @ HOU Gameday | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1985-07-06 | WSH @ HOU Gameday | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Pitching
| Date | Game | IP | H | R | ER | BB | SO | HR |
|---|---|---|---|---|---|---|---|---|
| 1982-09-14 | TEX @ MIN Gameday | 9.0 | 4 | 2 | 2 | 1 | 8 | 0 |
| 1982-07-26 | MIN @ SEA Gameday | 8.1 | 6 | 4 | 3 | 8 | 6 | 0 |
| 1983-04-12 | MIN @ ATH Gameday | 7.2 | 5 | 2 | 2 | 2 | 6 | 0 |
| 1982-06-26 | MIN @ TOR Gameday | 7.0 | 6 | 1 | 1 | 0 | 5 | 0 |
| 1983-06-07 | MIN @ KC Gameday | 6.1 | 6 | 3 | 1 | 1 | 5 | 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.