Mike Flanagan played in Major League Baseball from 1975 to 1992, appearing in 526 games over 18 seasons. He recorded a total of 167 W and 143 L, an ERA of 3.9, 1,491 SO, a WHIP of 1.334, and a WAR of 25.4.
Mike Flanagan Yearly Pitching Stats
This chart shows the season-by-season changes in ERA, SO, and IP for Mike Flanagan.
🧾 Basic Profile
 | |
| Name | Mike Flanagan |
| Date of Birth | December 16, 1951 |
| Nationality |  United States |
| MLB Debut | 1975 |
📊 Career Summary
Mike Flanagan appeared in 526 games over 18 MLB seasons from 1975 to 1992. Below are his cumulative stats and MLB all-time rankings:
| GS | 404 (MLB Rank: 137) |
| GF | 49 (MLB Rank: 1,687) |
| W | 167 (MLB Rank: 202) |
| L | 143 (MLB Rank: 195) |
| SV | 4 (MLB Rank: 2,131) |
| ERA | 3.9 (MLB Rank: 3,806) |
| IP | 2770 (MLB Rank: 182) |
| SHO | 19 (MLB Rank: 273) |
| CG | 101 (MLB Rank: 402) |
| SO | 1,491 (MLB Rank: 239) |
| BB | 890 (MLB Rank: 170) |
| H | 2,806 (MLB Rank: 165) |
| HR | 251 (MLB Rank: 130) |
| SO9 | 4.84 (MLB Rank: 5,744) |
| BB9 | 2.89 (MLB Rank: 8,748) |
| H9 | 9.12 (MLB Rank: 6,771) |
| HR9 | 0.82 (MLB Rank: 5,246) |
| WHIP | 1.334 (MLB Rank: 8,639) |
| WAR | 25.4 (MLB Rank: 389) |
📊 Last Season Summary (1992)
In his final season (1992), Mike Flanagan recorded the following stats:
| GS | 0 |
| GF | 15 |
| W | 0 |
| ERA | 8.05 |
| IP | 34.2 |
| SO | 17 |
| BB | 23 |
| H | 50 |
| HR | 3 |
| SO9 | 4.41 |
| BB9 | 5.97 |
| H9 | 12.98 |
| HR9 | 0.78 |
| WHIP | 2.106 |
| WAR | −1.5 |
📈 Seasonal Highlights
- Most Wins: 1979, 23 W
- Most SO: 1979, 190 SO
- Most IP: 1978, 281.1 IP
- Best WAR: 1979, 3.8 WAR
- Best ERA: 1991, 2.39 ERA
🎯 Postseason Performance
Mike Flanagan appeared in 7 games during the postseason. He recorded an ERA of 4.36, pitched 35.1 IP, struck out 20 batters, with 3 W and 2 L.
Mike Flanagan Career Pitching Stats Overview
| season | W | L | ERA | W-L% | SV | SO | IP | WAR | WHIP | HR | H | BB | R | ER | ERA+ | FIP | SO9 | SO/BB | GS | G | GF | CG | SHO | HR9 | H9 | BB9 | BK | HBP | IBB | WP | BF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1975 | 0 | 1 | 2.79 | 0 | 0 | 7 | 9.2 | 0.1 | 1.552 | 0 | 9 | 6 | 4 | 3 | 132 | 3 | 6.5 | 1.17 | 1 | 2 | 0 | 0 | 0 | 0 | 8.4 | 5.6 | 0 | 0 | 1 | 0 | 42 |
1976 | 3 | 5 | 4.13 | 0.375 | 0 | 56 | 85 | 0.2 | 1.365 | 7 | 83 | 33 | 41 | 39 | 80 | 3.55 | 5.9 | 1.7 | 10 | 20 | 7 | 4 | 0 | 0.7 | 8.8 | 3.5 | 1 | 0 | 0 | 2 | 358 |
1977 | 15 | 10 | 3.64 | 0.6 | 1 | 149 | 235 | 3 | 1.298 | 17 | 235 | 70 | 100 | 95 | 104 | 3.33 | 5.7 | 2.13 | 33 | 36 | 2 | 15 | 2 | 0.7 | 9 | 2.7 | 0 | 2 | 5 | 5 | 974 |
1978 | 19 | 15 | 4.03 | 0.559 | 0 | 167 | 281.1 | 1.5 | 1.273 | 22 | 271 | 87 | 128 | 126 | 87 | 3.37 | 5.3 | 1.92 | 40 | 40 | 0 | 17 | 2 | 0.7 | 8.7 | 2.8 | 1 | 3 | 2 | 8 | 1160 |
1979 | 23 | 9 | 3.08 | 0.719 | 0 | 190 | 265.2 | 3.8 | 1.186 | 23 | 245 | 70 | 107 | 91 | 131 | 3.25 | 6.4 | 2.71 | 38 | 39 | 0 | 16 | 5 | 0.8 | 8.3 | 2.4 | 0 | 3 | 1 | 6 | 1085 |
1980 | 16 | 13 | 4.12 | 0.552 | 0 | 128 | 251.1 | 2.3 | 1.389 | 27 | 278 | 71 | 121 | 115 | 96 | 4 | 4.6 | 1.8 | 37 | 37 | 0 | 12 | 2 | 1 | 10 | 2.5 | 1 | 2 | 3 | 12 | 1065 |
1981 | 9 | 6 | 4.19 | 0.6 | 0 | 72 | 116 | 0.6 | 1.25 | 11 | 108 | 37 | 55 | 54 | 87 | 3.6 | 5.6 | 1.95 | 20 | 20 | 0 | 3 | 2 | 0.9 | 8.4 | 2.9 | 0 | 2 | 1 | 6 | 482 |
1982 | 15 | 11 | 3.97 | 0.577 | 0 | 103 | 236 | 2.4 | 1.309 | 24 | 233 | 76 | 110 | 104 | 102 | 4.18 | 3.9 | 1.36 | 35 | 36 | 1 | 11 | 1 | 0.9 | 8.9 | 2.9 | 2 | 4 | 5 | 9 | 991 |
1983 | 12 | 4 | 3.3 | 0.75 | 0 | 50 | 125.1 | 2 | 1.324 | 10 | 135 | 31 | 53 | 46 | 120 | 3.78 | 3.6 | 1.61 | 20 | 20 | 0 | 3 | 1 | 0.7 | 9.7 | 2.2 | 0 | 2 | 2 | 1 | 528 |
1984 | 13 | 13 | 3.53 | 0.5 | 0 | 115 | 226.2 | 2.2 | 1.297 | 24 | 213 | 81 | 103 | 89 | 110 | 4.22 | 4.6 | 1.42 | 34 | 34 | 0 | 10 | 2 | 1 | 8.5 | 3.2 | 0 | 1 | 5 | 8 | 947 |
1985 | 4 | 5 | 5.13 | 0.444 | 0 | 42 | 86 | 0.4 | 1.5 | 14 | 101 | 28 | 49 | 49 | 79 | 4.87 | 4.4 | 1.5 | 15 | 15 | 0 | 1 | 0 | 1.5 | 10.6 | 2.9 | 0 | 2 | 0 | 3 | 379 |
1986 | 7 | 11 | 4.24 | 0.389 | 0 | 96 | 172 | 1.2 | 1.424 | 15 | 179 | 66 | 95 | 81 | 98 | 3.96 | 5 | 1.45 | 28 | 29 | 0 | 2 | 0 | 0.8 | 9.4 | 3.5 | 1 | 1 | 4 | 8 | 747 |
1987 | 6 | 8 | 4.06 | 0.429 | 0 | 93 | 144 | 2.2 | 1.382 | 12 | 148 | 51 | 72 | 65 | 110 | 3.73 | 5.8 | 1.82 | 23 | 23 | 0 | 4 | 0 | 0.8 | 9.3 | 3.2 | 0 | 0 | 4 | 3 | 619 |
1988 | 13 | 13 | 4.18 | 0.5 | 0 | 99 | 211 | 1.2 | 1.422 | 23 | 220 | 80 | 106 | 98 | 93 | 4.47 | 4.2 | 1.24 | 34 | 34 | 0 | 2 | 1 | 1 | 9.4 | 3.4 | 4 | 6 | 1 | 3 | 916 |
1989 | 8 | 10 | 3.93 | 0.444 | 0 | 47 | 171.2 | 1.3 | 1.357 | 10 | 186 | 47 | 82 | 75 | 93 | 3.88 | 2.5 | 1 | 30 | 30 | 0 | 1 | 1 | 0.5 | 9.8 | 2.5 | 0 | 5 | 0 | 4 | 726 |
1990 | 2 | 2 | 5.31 | 0.5 | 0 | 5 | 20.1 | -0.2 | 1.77 | 3 | 28 | 8 | 14 | 12 | 79 | 5.41 | 2.2 | 0.63 | 5 | 5 | 0 | 0 | 0 | 1.3 | 12.4 | 3.5 | 0 | 0 | 0 | 0 | 94 |
1991 | 2 | 7 | 2.38 | 0.222 | 3 | 55 | 98.1 | 2.7 | 1.108 | 6 | 84 | 25 | 27 | 26 | 168 | 3.38 | 5 | 2.2 | 1 | 64 | 24 | 0 | 0 | 0.5 | 7.7 | 2.3 | 2 | 3 | 6 | 2 | 391 |
1992 | 0 | 0 | 8.05 | 0 | 0 | 17 | 34.2 | -1.5 | 2.106 | 3 | 50 | 23 | 34 | 31 | 50 | 5.35 | 4.4 | 0.74 | 0 | 42 | 15 | 0 | 0 | 0.8 | 13 | 6 | 0 | 5 | 1 | 4 | 180 |