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Jumbo Brown played 12 major-league seasons (1925-1941) as a P (249). 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+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1925 | 18 | CHN | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .000 | .000 | -100 |
| 1927 | 20 | CLE | 8 | 3 | 1 | 2 | 0 | 1 | 0 | 2 | 1 | .667 | 1.467 | 295 |
| 1928 | 21 | CLE | 5 | 3 | 1 | 2 | 0 | 0 | 0 | 0 | 1 | .667 | 2.000 | 430 |
| 1932 | 25 | NYA | 19 | 23 | 3 | 4 | 0 | 1 | 0 | 0 | 8 | .174 | .391 | 4 |
| 1933 | 26 | NYA | 21 | 28 | 1 | 5 | 0 | 4 | 0 | 0 | 6 | .179 | .393 | 7 |
| 1935 | 28 | NYA | 20 | 32 | 3 | 10 | 0 | 3 | 0 | 2 | 8 | .313 | .728 | 94 |
| 1936 | 29 | NYA | 20 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | .000 | .000 | -100 |
| 1937 | 30 | CIN|NY1 | 8 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | .000 | .333 | 1 |
| 1938 | 31 | NY1 | 43 | 16 | 2 | 3 | 0 | 1 | 0 | 2 | 3 | .188 | .528 | 51 |
| 1939 | 32 | NY1 | 31 | 11 | 2 | 4 | 0 | 1 | 0 | 1 | 0 | .364 | .780 | 118 |
| 1940 | 33 | NY1 | 41 | 10 | 0 | 1 | 0 | 0 | 0 | 0 | 3 | .100 | .200 | -43 |
| 1941 | 34 | NY1 | 31 | 9 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | .111 | .222 | -35 |
| Year | Age | Team | G | GS | W | L | SV | IP | SO | BB | ERA | ERA+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1925 | 18 | CHN | 2 | 0 | 0 | 0 | 0 | 6 | 0 | 4 | 3.00 | 142 |
| 1927 | 20 | CLE | 8 | 0 | 0 | 2 | 0 | 18.2 | 8 | 26 | 6.27 | 66 |
| 1928 | 21 | CLE | 5 | 0 | 0 | 1 | 0 | 14.2 | 12 | 15 | 6.75 | 60 |
| 1932 | 25 | NYA | 19 | 3 | 5 | 2 | 1 | 55.2 | 31 | 30 | 4.53 | 99 |
| 1933 | 26 | NYA | 21 | 8 | 7 | 5 | 0 | 74 | 55 | 52 | 5.23 | 82 |
| 1935 | 28 | NYA | 20 | 8 | 6 | 5 | 0 | 87.1 | 41 | 37 | 3.61 | 124 |
| 1936 | 29 | NYA | 20 | 3 | 1 | 4 | 1 | 64 | 19 | 29 | 5.91 | 85 |
| 1937 | 30 | CIN|NY1 | 8 | 1 | 2 | 0 | 0 | 18.1 | 8 | 8 | 4.91 | 80 |
| 1938 | 31 | NY1 | 43 | 0 | 5 | 3 | 5 | 90 | 42 | 28 | 1.80 | 210 |
| 1939 | 32 | NY1 | 31 | 0 | 4 | 0 | 7 | 56.1 | 24 | 25 | 4.15 | 94 |
| 1940 | 33 | NY1 | 41 | 0 | 2 | 4 | 7 | 55.1 | 31 | 25 | 3.42 | 113 |
| 1941 | 34 | NY1 | 31 | 0 | 1 | 5 | 8 | 57 | 30 | 21 | 3.32 | 110 |
| Year | Pos | G | GS | PO | A | E | DP |
|---|---|---|---|---|---|---|---|
| 1925 | P | 2 | 0 | 0 | 2 | 0 | 0 |
| 1927 | P | 8 | 0 | 1 | 5 | 1 | 1 |
| 1928 | P | 5 | 0 | 1 | 1 | 0 | 0 |
| 1932 | P | 19 | 0 | 5 | 16 | 0 | 1 |
| 1933 | P | 21 | 0 | 0 | 14 | 1 | 1 |
| 1935 | P | 20 | 0 | 8 | 16 | 1 | 1 |
| 1936 | P | 20 | 0 | 1 | 17 | 1 | 1 |
| 1937 | P | 8 | 0 | 0 | 6 | 0 | 0 |
| 1938 | P | 43 | 0 | 5 | 11 | 2 | 1 |
| 1939 | P | 31 | 0 | 0 | 12 | 0 | 1 |
| 1940 | P | 41 | 0 | 0 | 7 | 0 | 0 |
| 1941 | P | 31 | 0 | 0 | 8 | 0 | 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.
Jumbo Brown ranks on 1 all-time single-season position leaderboard (1871-2025, league-season-normalized OPS+ / ERA+).
| Rank | Board | Year | Stat |
|---|---|---|---|
| #117 | relief pitchers | 1938 | 210 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.