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Mike Flanagan played 18 major-league seasons (1975-1992) as a P (526). Career totals and every year-by-year line below come from the SABR/Lahman database (CC BY-SA), covering 1871-2025.
Showing 18 season lines
| Year | Age | Team | G | GS | W | L | SV | IP | SO | BB | ERA | ERA+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1975 | 24 | BAL | 2 | 1 | 0 | 1 | 0 | 9.2 | 7 | 6 | 2.79 | 135 |
| 1976 | 25 | BAL | 20 | 10 | 3 | 5 | 0 | 85 | 56 | 33 | 4.13 | 85 |
| 1977 | 26 | BAL | 36 | 33 | 15 | 10 | 1 | 235 | 149 | 70 | 3.64 | 112 |
| 1978 | 27 | BAL | 40 | 40 | 19 | 15 | 0 | 281.1 | 167 | 87 | 4.03 | 93 |
| 1979 | 28 | BAL | 39 | 38 | 23 | 9 | 0 | 265.2 | 190 | 70 | 3.08 | 137 |
| 1980 | 29 | BAL | 37 | 37 | 16 | 13 | 0 | 251.1 | 128 | 71 | 4.12 | 98 |
| 1981 | 30 | BAL | 20 | 20 | 9 | 6 | 0 | 116 | 72 | 37 | 4.19 | 87 |
| 1982 | 31 | BAL | 36 | 35 | 15 | 11 | 0 | 236 | 103 | 76 | 3.97 | 103 |
| 1983 | 32 | BAL | 20 | 20 | 12 | 4 | 0 | 125.1 | 50 | 31 | 3.30 | 123 |
| 1984 | 33 | BAL | 34 | 34 | 13 | 13 | 0 | 226.2 | 115 | 81 | 3.53 | 113 |
| 1985 | 34 | BAL | 15 | 15 | 4 | 5 | 0 | 86 | 42 | 28 | 5.13 | 81 |
| 1986 | 35 | BAL | 29 | 28 | 7 | 11 | 0 | 172 | 96 | 66 | 4.24 | 99 |
| 1987 | 36 | BAL|TOR | 23 | 23 | 6 | 8 | 0 | 144 | 93 | 51 | 4.06 | 110 |
| 1988 | 37 | TOR | 34 | 34 | 13 | 13 | 0 | 211 | 99 | 80 | 4.18 | 95 |
| 1989 | 38 | TOR | 30 | 30 | 8 | 10 | 0 | 171.2 | 47 | 47 | 3.93 | 99 |
| 1990 | 39 | TOR | 5 | 5 | 2 | 2 | 0 | 20.1 | 5 | 8 | 5.31 | 74 |
| 1991 | 40 | BAL | 64 | 1 | 2 | 7 | 3 | 98.1 | 55 | 25 | 2.38 | 172 |
| 1992 | 41 | BAL | 42 | 0 | 0 | 0 | 0 | 34.2 | 17 | 23 | 8.05 | 49 |
| Year | Pos | G | GS | PO | A | E | DP |
|---|---|---|---|---|---|---|---|
| 1975 | P | 2 | 1 | 0 | 2 | 0 | 0 |
| 1976 | P | 20 | 10 | 4 | 13 | 0 | 0 |
| 1977 | P | 36 | 33 | 7 | 36 | 0 | 3 |
| 1978 | P | 40 | 40 | 6 | 38 | 2 | 1 |
| 1979 | P | 39 | 38 | 4 | 41 | 2 | 2 |
| 1980 | P | 37 | 37 | 6 | 42 | 1 | 2 |
| 1981 | P | 20 | 20 | 4 | 24 | 1 | 1 |
| 1982 | P | 36 | 35 | 7 | 38 | 0 | 1 |
| 1983 | P | 20 | 20 | 6 | 15 | 2 | 1 |
| 1984 | P | 34 | 34 | 3 | 33 | 0 | 2 |
| 1985 | P | 15 | 15 | 4 | 11 | 0 | 0 |
| 1986 | P | 29 | 28 | 4 | 17 | 0 | 1 |
| 1987 | P | 23 | 23 | 8 | 17 | 1 | 2 |
| 1988 | P | 34 | 34 | 6 | 35 | 0 | 2 |
| 1989 | P | 30 | 30 | 8 | 33 | 0 | 4 |
| 1990 | P | 5 | 5 | 0 | 6 | 1 | 0 |
| 1991 | P | 64 | 1 | 6 | 23 | 0 | 2 |
| 1992 | P | 42 | 0 | 6 | 6 | 1 | 2 |
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.
Mike Flanagan won: Cy Young Award 1979 (AL), TSN All-Star 1979 (AL).
MVP, Cy Young and Rookie of the Year voting history (2 ballot finishes, 1 win). Full year pages: 1979.
| Year | Award | Lg | Rank | Points | First-place votes |
|---|---|---|---|---|---|
| 1979 | Cy Young Award (winner) | AL | 1 | 136 / 140 | 26 |
| 1979 | Most Valuable Player | AL | 6 | 100 / 392 | 3 |
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.