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Jim Konstanty played 11 major-league seasons (1944-1956) as a P (433). Career totals and every year-by-year line below come from the SABR/Lahman database (CC BY-SA), covering 1871-2025.
Showing 13 season lines
| Year | Age | Team | G | AB | R | H | HR | RBI | SB | BB | SO | AVG | OPS | OPS+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1944 | 27 | CIN | 20 | 34 | 2 | 10 | 0 | 2 | 0 | 1 | 5 | .294 | .608 | 77 |
| 1946 | 29 | BSN | 10 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .000 | .333 | 1 |
| 1948 | 31 | PHI | 6 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | -100 |
| 1949 | 32 | PHI | 53 | 17 | 0 | 3 | 0 | 1 | 0 | 0 | 4 | .176 | .353 | -2 |
| 1950 | 33 | PHI | 74 | 37 | 0 | 4 | 0 | 3 | 0 | 0 | 13 | .108 | .216 | -41 |
| 1951 | 34 | PHI | 58 | 19 | 0 | 3 | 0 | 0 | 0 | 0 | 5 | .158 | .368 | 2 |
| 1952 | 35 | PHI | 42 | 14 | 1 | 1 | 0 | 2 | 0 | 1 | 2 | .071 | .276 | -21 |
| 1953 | 36 | PHI | 48 | 50 | 3 | 11 | 0 | 5 | 0 | 0 | 7 | .220 | .440 | 19 |
| 1954 | 37 | NYA | 9 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | -100 |
| 1954 | 37 | PHI | 33 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | .000 | .000 | -100 |
| 1955 | 38 | NYA | 45 | 8 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | .125 | .347 | -2 |
| 1956 | 39 | NYA | 8 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .000 | .000 | -100 |
| 1956 | 39 | SLN | 27 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | — | — | — |
| Year | Age | Team | G | GS | W | L | SV | IP | SO | BB | ERA | ERA+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1944 | 27 | CIN | 20 | 12 | 6 | 4 | 0 | 112.2 | 19 | 33 | 2.80 | 129 |
| 1946 | 29 | BSN | 10 | 1 | 0 | 1 | 0 | 15.1 | 9 | 7 | 5.28 | 65 |
| 1948 | 31 | PHI | 6 | 0 | 1 | 0 | 2 | 9.2 | 7 | 2 | 0.93 | 425 |
| 1949 | 32 | PHI | 53 | 0 | 9 | 5 | 7 | 97 | 43 | 29 | 3.25 | 124 |
| 1950 | 33 | PHI | 74 | 0 | 16 | 7 | 22 | 152 | 56 | 50 | 2.66 | 155 |
| 1951 | 34 | PHI | 58 | 1 | 4 | 11 | 9 | 115.2 | 27 | 31 | 4.05 | 98 |
| 1952 | 35 | PHI | 42 | 2 | 5 | 3 | 6 | 80 | 16 | 21 | 3.94 | 95 |
| 1953 | 36 | PHI | 48 | 19 | 14 | 10 | 5 | 170.2 | 45 | 42 | 4.43 | 97 |
| 1954 | 37 | NYA | 9 | 0 | 1 | 1 | 2 | 18.1 | 3 | 6 | 0.98 | 379 |
| 1954 | 37 | PHI | 33 | 1 | 2 | 3 | 3 | 50.1 | 11 | 12 | 3.75 | 108 |
| 1955 | 38 | NYA | 45 | 0 | 7 | 2 | 11 | 73.2 | 19 | 24 | 2.32 | 171 |
| 1956 | 39 | NYA | 8 | 0 | 0 | 0 | 2 | 11 | 6 | 6 | 4.91 | 85 |
| 1956 | 39 | SLN | 27 | 0 | 1 | 1 | 5 | 39.1 | 7 | 6 | 4.58 | 82 |
| Year | Pos | G | GS | PO | A | E | DP |
|---|---|---|---|---|---|---|---|
| 1944 | P | 20 | 0 | 10 | 25 | 0 | 1 |
| 1946 | P | 10 | 0 | 2 | 5 | 0 | 1 |
| 1948 | P | 6 | 0 | 0 | 1 | 0 | 0 |
| 1949 | P | 53 | 0 | 3 | 25 | 2 | 0 |
| 1950 | P | 74 | 0 | 12 | 22 | 2 | 3 |
| 1951 | P | 58 | 0 | 8 | 29 | 1 | 1 |
| 1952 | P | 42 | 0 | 6 | 16 | 3 | 1 |
| 1953 | P | 48 | 0 | 6 | 33 | 0 | 5 |
| 1954 | P | 42 | 1 | 5 | 13 | 0 | 0 |
| 1955 | P | 45 | 0 | 8 | 11 | 2 | 1 |
| 1956 | P | 35 | 0 | 1 | 5 | 0 | 1 |
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.
Jim Konstanty won: Baseball Magazine All-Star 1950 (ML), Baseball Magazine All-Star 1950 (NL), MVP 1950 (NL), TSN All-Star 1950 (ML).
MVP, Cy Young and Rookie of the Year voting history (1 ballot finishes, 1 win). Full year pages: 1950.
| Year | Award | Lg | Rank | Points | First-place votes |
|---|---|---|---|---|---|
| 1950 | Most Valuable Player (winner) | NL | 1 | 286 / 336 | 18 |
Jim Konstanty ranks on 1 all-time single-season position leaderboard (1871-2025, league-season-normalized OPS+ / ERA+).
| Rank | Board | Year | Stat |
|---|---|---|---|
| #114 | closers | 1955 | 171 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.