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Al Mamaux played 12 major-league seasons (1913-1924) as a P (254). Career totals and every year-by-year line below come from the SABR/Lahman database (CC BY-SA), covering 1871-2025.
Showing 12 season lines
| Year | Age | Team | G | AB | R | H | HR | RBI | SB | BB | SO | AVG | OPS | OPS+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1913 | 19 | PIT | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .000 | .000 | -100 |
| 1914 | 20 | PIT | 13 | 20 | 4 | 5 | 0 | 0 | 0 | 0 | 3 | .250 | .550 | 69 |
| 1915 | 21 | PIT | 38 | 92 | 3 | 15 | 0 | 7 | 0 | 2 | 28 | .163 | .363 | 14 |
| 1916 | 22 | PIT | 45 | 110 | 13 | 21 | 0 | 6 | 0 | 3 | 18 | .191 | .467 | 48 |
| 1917 | 23 | PIT | 16 | 31 | 3 | 7 | 0 | 0 | 0 | 0 | 6 | .226 | .476 | 51 |
| 1918 | 24 | BRO | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | -100 |
| 1919 | 25 | BRO | 30 | 63 | 5 | 11 | 0 | 4 | 0 | 7 | 12 | .175 | .479 | 49 |
| 1920 | 26 | BRO | 41 | 60 | 5 | 10 | 0 | 5 | 0 | 8 | 14 | .167 | .465 | 38 |
| 1921 | 27 | BRO | 12 | 11 | 2 | 2 | 0 | 1 | 0 | 1 | 3 | .182 | .432 | 20 |
| 1922 | 28 | BRO | 37 | 17 | 2 | 4 | 1 | 5 | 0 | 5 | 2 | .235 | .939 | 148 |
| 1923 | 29 | BRO | 5 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | .500 | 1.000 | 173 |
| 1924 | 30 | NYA | 14 | 13 | 2 | 1 | 0 | 1 | 0 | 1 | 3 | .077 | .220 | -41 |
| Year | Age | Team | G | GS | W | L | SV | IP | SO | BB | ERA | ERA+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1913 | 19 | PIT | 1 | 0 | 0 | 0 | 0 | 3 | 2 | 2 | 3.00 | 106 |
| 1914 | 20 | PIT | 13 | 6 | 5 | 2 | 0 | 63 | 30 | 24 | 1.71 | 162 |
| 1915 | 21 | PIT | 38 | 31 | 21 | 8 | 0 | 251.2 | 152 | 96 | 2.04 | 135 |
| 1916 | 22 | PIT | 45 | 38 | 21 | 15 | 2 | 310 | 163 | 136 | 2.53 | 103 |
| 1917 | 23 | PIT | 16 | 13 | 2 | 11 | 0 | 85.2 | 22 | 50 | 5.25 | 52 |
| 1918 | 24 | BRO | 2 | 1 | 0 | 1 | 0 | 8 | 2 | 2 | 6.75 | 41 |
| 1919 | 25 | BRO | 30 | 22 | 10 | 12 | 0 | 199.1 | 80 | 66 | 2.66 | 109 |
| 1920 | 26 | BRO | 41 | 18 | 12 | 8 | 4 | 190.2 | 101 | 63 | 2.69 | 116 |
| 1921 | 27 | BRO | 12 | 1 | 3 | 3 | 1 | 43 | 21 | 13 | 3.14 | 120 |
| 1922 | 28 | BRO | 37 | 7 | 1 | 4 | 3 | 87.2 | 35 | 33 | 3.70 | 111 |
| 1923 | 29 | BRO | 5 | 1 | 0 | 2 | 0 | 13 | 5 | 6 | 8.31 | 48 |
| 1924 | 30 | NYA | 14 | 2 | 1 | 1 | 0 | 38 | 12 | 20 | 5.68 | 74 |
| Year | Pos | G | GS | PO | A | E | DP |
|---|---|---|---|---|---|---|---|
| 1913 | P | 1 | 0 | 0 | 1 | 0 | 0 |
| 1914 | P | 13 | 0 | 4 | 23 | 2 | 0 |
| 1915 | P | 38 | 0 | 5 | 48 | 2 | 2 |
| 1916 | P | 45 | 0 | 7 | 82 | 1 | 1 |
| 1917 | P | 16 | 0 | 3 | 20 | 1 | 0 |
| 1918 | P | 2 | 0 | 0 | 6 | 0 | 0 |
| 1919 | P | 30 | 0 | 4 | 56 | 3 | 0 |
| 1920 | P | 41 | 0 | 6 | 46 | 3 | 1 |
| 1921 | P | 12 | 0 | 1 | 14 | 1 | 0 |
| 1922 | P | 37 | 0 | 2 | 22 | 0 | 0 |
| 1923 | P | 5 | 0 | 0 | 3 | 0 | 1 |
| 1924 | P | 14 | 0 | 1 | 6 | 2 | 0 |
Team codes are the source codes (e.g. NYN for the New York Mets, BS1 for the 1875 Boston club). OPS+ is league-season normalized, not park-adjusted; unrecorded source values (such as RBI in the earliest recorded seasons) are absent, never zero-filled.
Al Mamaux won: Baseball Magazine All-Star 1915 (NL), Baseball Magazine All-Star 1916 (NL).
Al Mamaux ranks on 1 all-time single-season position leaderboard (1871-2025, league-season-normalized OPS+ / ERA+).
| Rank | Board | Year | Stat |
|---|---|---|---|
| #148 | relief pitchers | 1914 | 162 ERA+ |
Every career total and season line is computed from the SABR / Sean Lahman baseball database (2025 edition, CC BY-SA 3.0), the same source behind our historical position leaderboards. Rate stats use league-season normalization only (OPS+ and ERA+ as marked, never park-adjusted); unrecorded early-era values stay absent rather than being invented. Career totals sum only what the source records.
Award winners and MVP / Cy Young / Rookie of the Year voting history come from the same database; the year pages live under MLB award voting history. Official transactions (2011 to the current season) come from the MLB StatsAPI feed on our transactions archive.