Mark Williamson
Baltimore Orioles 1987–1994
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1987 | 61 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | — | — | — | — | — | — | — | 1.8 |
| 1988 | 37 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | — | — | — | — | — | — | — | -0.2 |
| 1989 | 65 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | — | — | — | — | — | — | — | 2.2 |
| 1990 | 49 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | — | — | — | — | — | — | — | 2.5 |
| 1991 | 65 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | — | — | — | — | — | — | — | 0.4 |
| 1992 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | — | — | — | — | — | — | — | 0.8 |
| 1993 | 48 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | — | — | — | — | — | — | — | 0.4 |
| 1994 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | — | — | — | — | — | — | — | 1.3 |
Pitching
| Season | G | GS | W | L | SV | CG | SHO | H | ER | BB | SO | HR | IP | ERA | WHIP | K/9 | FIP | FIP- | ERA+ | sWAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1987 | 61 | 2 | 8 | 9 | 3 | 0 | 0 | 122 | 56 | 41 | 73 | 12 | 125.0 | 4.03 | 1.304 | 5.26 | 4.01 | 90.9 | 109.4 | 1.8 |
| 1988 | 37 | 10 | 5 | 8 | 2 | 2 | 0 | 125 | 64 | 40 | 69 | 14 | 117.7 | 4.90 | 1.402 | 5.28 | 4.27 | 109.0 | 80.0 | -0.2 |
| 1989 | 65 | 0 | 10 | 5 | 9 | 0 | 0 | 105 | 35 | 30 | 55 | 4 | 107.3 | 2.93 | 1.258 | 4.61 | 3.20 | 84.2 | 129.8 | 2.2 |
| 1990 | 49 | 0 | 8 | 2 | 1 | 0 | 0 | 65 | 21 | 28 | 60 | 8 | 85.3 | 2.21 | 1.090 | 6.33 | 3.60 | 94.0 | 173.2 | 2.5 |
| 1991 | 65 | 0 | 5 | 5 | 4 | 0 | 0 | 87 | 40 | 35 | 53 | 9 | 80.3 | 4.48 | 1.519 | 5.94 | 4.35 | 108.3 | 89.7 | 0.4 |
| 1992 | 12 | 0 | 0 | 0 | 1 | 0 | 0 | 16 | 2 | 10 | 14 | 1 | 18.7 | 0.96 | 1.393 | 6.75 | 3.59 | 90.9 | 410.0 | 0.8 |
| 1993 | 48 | 1 | 7 | 5 | 0 | 0 | 0 | 106 | 48 | 25 | 45 | 5 | 88.0 | 4.91 | 1.489 | 4.60 | 3.57 | 80.6 | 90.2 | 0.4 |
| 1994 | 28 | 2 | 3 | 1 | 1 | 0 | 0 | 75 | 30 | 17 | 28 | 9 | 67.3 | 4.01 | 1.366 | 3.74 | 4.95 | 100.0 | 123.4 | 1.3 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1989-07-02 | DET @ BAL Gameday | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Pitching
| Date | Game | IP | H | R | ER | BB | SO | HR |
|---|---|---|---|---|---|---|---|---|
| 1988-05-25 | BAL @ ATH Gameday | 8.0 | 9 | 8 | 8 | 2 | 7 | 2 |
| 1988-05-11 | BAL @ TEX Gameday | 7.0 | 12 | 8 | 8 | 1 | 5 | 2 |
| 1991-05-27 | CLE @ BAL Gameday | 4.0 | 1 | 0 | 0 | 0 | 5 | 0 |
| 1987-08-04 | BAL @ MIL Gameday | 3.1 | 3 | 1 | 1 | 1 | 5 | 0 |
| 1989-05-21 | CLE @ BAL Gameday | 3.0 | 2 | 0 | 0 | 0 | 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.