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Bert Blyleven played 22 major-league seasons (1970-1992) as a P (692). Career totals and every year-by-year line below come from the SABR/Lahman database (CC BY-SA), covering 1871-2025.
Showing 6 season lines
| Year | Age | Team | G | AB | R | H | HR | RBI | SB | BB | SO | AVG | OPS | OPS+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1970 | 19 | MIN | 27 | 50 | 2 | 7 | 0 | 1 | 0 | 1 | 25 | .140 | .297 | -14 |
| 1971 | 20 | MIN | 38 | 91 | 3 | 12 | 0 | 2 | 0 | 1 | 37 | .132 | .293 | -13 |
| 1972 | 21 | MIN | 39 | 94 | 9 | 15 | 0 | 6 | 0 | 2 | 36 | .160 | .358 | 11 |
| 1978 | 27 | PIT | 37 | 85 | 4 | 11 | 0 | 11 | 0 | 1 | 35 | .129 | .292 | -15 |
| 1979 | 28 | PIT | 38 | 70 | 1 | 9 | 0 | 3 | 0 | 0 | 33 | .129 | .271 | -23 |
| 1980 | 29 | PIT | 37 | 61 | 0 | 5 | 0 | 2 | 0 | 0 | 27 | .082 | .195 | -44 |
| Year | Age | Team | G | GS | W | L | SV | IP | SO | BB | ERA | ERA+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1970 | 19 | MIN | 27 | 25 | 10 | 9 | 0 | 164 | 135 | 47 | 3.18 | 117 |
| 1971 | 20 | MIN | 38 | 38 | 16 | 15 | 0 | 278.1 | 224 | 59 | 2.81 | 123 |
| 1972 | 21 | MIN | 39 | 38 | 17 | 17 | 0 | 287.1 | 228 | 69 | 2.73 | 112 |
| 1973 | 22 | MIN | 40 | 40 | 20 | 17 | 0 | 325 | 258 | 67 | 2.52 | 151 |
| 1974 | 23 | MIN | 37 | 37 | 17 | 17 | 0 | 281 | 249 | 77 | 2.66 | 136 |
| 1975 | 24 | MIN | 35 | 35 | 15 | 10 | 0 | 275.2 | 233 | 84 | 3.00 | 126 |
| 1976 | 25 | MIN|TEX | 36 | 36 | 13 | 16 | 0 | 297.2 | 219 | 81 | 2.87 | 122 |
| 1977 | 26 | TEX | 30 | 30 | 14 | 12 | 0 | 234.2 | 182 | 69 | 2.72 | 149 |
| 1978 | 27 | PIT | 34 | 34 | 14 | 10 | 0 | 243.2 | 182 | 66 | 3.03 | 118 |
| 1979 | 28 | PIT | 37 | 37 | 12 | 5 | 0 | 237.1 | 172 | 92 | 3.60 | 104 |
| 1980 | 29 | PIT | 34 | 32 | 8 | 13 | 0 | 216.2 | 168 | 59 | 3.82 | 94 |
| 1981 | 30 | CLE | 20 | 20 | 11 | 7 | 0 | 159.1 | 107 | 40 | 2.88 | 127 |
| 1982 | 31 | CLE | 4 | 4 | 2 | 2 | 0 | 20.1 | 19 | 11 | 4.87 | 84 |
| 1983 | 32 | CLE | 24 | 24 | 7 | 10 | 0 | 156.1 | 123 | 44 | 3.91 | 104 |
| 1984 | 33 | CLE | 33 | 32 | 19 | 7 | 0 | 245 | 170 | 74 | 2.87 | 139 |
| 1985 | 34 | CLE|MIN | 37 | 37 | 17 | 16 | 0 | 293.2 | 206 | 75 | 3.16 | 131 |
| 1986 | 35 | MIN | 36 | 36 | 17 | 14 | 0 | 271.2 | 215 | 58 | 4.01 | 104 |
| 1987 | 36 | MIN | 37 | 37 | 15 | 12 | 0 | 267 | 196 | 101 | 4.01 | 111 |
| 1988 | 37 | MIN | 33 | 33 | 10 | 17 | 0 | 207.1 | 145 | 51 | 5.43 | 73 |
| 1989 | 38 | CAL | 33 | 33 | 17 | 5 | 0 | 241 | 131 | 44 | 2.73 | 142 |
| 1990 | 39 | CAL | 23 | 23 | 8 | 7 | 0 | 134 | 69 | 25 | 5.24 | 75 |
| 1992 | 41 | CAL | 25 | 24 | 8 | 12 | 0 | 133 | 70 | 29 | 4.74 | 83 |
| Year | Pos | G | GS | PO | A | E | DP |
|---|---|---|---|---|---|---|---|
| 1970 | P | 27 | 25 | 5 | 16 | 1 | 1 |
| 1971 | P | 38 | 38 | 19 | 38 | 2 | 0 |
| 1972 | P | 39 | 38 | 18 | 45 | 3 | 4 |
| 1973 | P | 40 | 40 | 21 | 34 | 1 | 0 |
| 1974 | P | 37 | 37 | 19 | 34 | 3 | 2 |
| 1975 | P | 35 | 35 | 16 | 48 | 6 | 5 |
| 1976 | P | 36 | 36 | 22 | 44 | 0 | 4 |
| 1977 | P | 30 | 30 | 10 | 35 | 1 | 4 |
| 1978 | P | 34 | 34 | 11 | 41 | 1 | 4 |
| 1979 | P | 37 | 37 | 14 | 20 | 0 | 0 |
| 1980 | P | 34 | 32 | 10 | 30 | 2 | 2 |
| 1981 | P | 20 | 20 | 9 | 16 | 1 | 2 |
| 1982 | P | 4 | 4 | 2 | 2 | 0 | 0 |
| 1983 | P | 24 | 24 | 7 | 26 | 1 | 3 |
| 1984 | P | 33 | 32 | 21 | 30 | 2 | 2 |
| 1985 | P | 37 | 37 | 17 | 32 | 0 | 2 |
| 1986 | P | 36 | 36 | 15 | 31 | 0 | 0 |
| 1987 | P | 37 | 37 | 17 | 43 | 4 | 3 |
| 1988 | P | 33 | 33 | 12 | 22 | 1 | 3 |
| 1989 | P | 33 | 33 | 14 | 38 | 0 | 6 |
| 1990 | P | 23 | 23 | 3 | 24 | 1 | 0 |
| 1992 | P | 25 | 24 | 5 | 13 | 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.
MVP, Cy Young and Rookie of the Year voting history (6 ballot finishes, 0 wins). Full year pages: 1989, 1985, 1984, 1973.
| Year | Award | Lg | Rank | Points | First-place votes |
|---|---|---|---|---|---|
| 1973 | Cy Young Award | AL | 8 | 1 / 120 | 0 |
| 1973 | Most Valuable Player | AL | 26 | 4 / 336 | 0 |
| 1984 | Cy Young Award | AL | 3 | 45 / 140 | 4 |
| 1985 | Cy Young Award | AL | 3 | 9 / 140 | 1 |
| 1989 | Cy Young Award | AL | 4 | 9 / 140 | 0 |
| 1989 | Most Valuable Player | AL | 13 | 32 / 392 | 0 |
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.