| Date | Opp | Result | Pos | AB | R | H | TB | 2B | 3B | HR | RBI | SH | SF | HBP | BB | IBB | SO | SB | CS | GIDP | PO | A | E | DP | AVG | OBP | SLG | OPS | wOBA | wRC+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1972 — Falmouth · UMass | ||||||||||||||||||||||||||||||
| Season Total | 84 | 18 | 24 | 49 | 2 | 1 | 7 | 14 | 0 | 0 | 0 | 11 | 0 | 23 | 0 | 0 | — | 0.286 | 0.368 | 0.583 | 0.951 | — | — |
| Year | Level | Team | Org | G | GS | IP | H | R | ER | BB | SO | HR | W | L | SV | ERA | WHIP | K/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1975 | MLB | Baltimore Orioles | Baltimore Orioles | 2 | 1 | 9.2 | 9 | 4 | 3 | 6 | 7 | 0 | 0 | 1 | 0 | 2.79 | 1.55 | 6.52 |
| 1976 | MLB | Baltimore Orioles | Baltimore Orioles | 20 | 10 | 85.0 | 83 | 41 | 39 | 33 | 56 | 7 | 3 | 5 | 0 | 4.13 | 1.36 | 5.93 |
| 1977 | MLB | Baltimore Orioles | Baltimore Orioles | 36 | 33 | 235.0 | 235 | 100 | 95 | 70 | 149 | 17 | 15 | 10 | 1 | 3.64 | 1.30 | 5.71 |
| 1978 | MLB | Baltimore Orioles | Baltimore Orioles | 40 | 40 | 281.1 | 271 | 128 | 126 | 87 | 167 | 22 | 19 | 15 | 0 | 4.03 | 1.27 | 5.34 |
| 1979 | MLB | Baltimore Orioles | Baltimore Orioles | 39 | 38 | 265.2 | 245 | 107 | 91 | 70 | 190 | 23 | 23 | 9 | 0 | 3.08 | 1.19 | 6.44 |
| 1980 | MLB | Baltimore Orioles | Baltimore Orioles | 37 | 37 | 251.1 | 278 | 121 | 115 | 71 | 128 | 27 | 16 | 13 | 0 | 4.12 | 1.39 | 4.58 |
| 1981 | MLB | Baltimore Orioles | Baltimore Orioles | 20 | 20 | 116.0 | 108 | 55 | 54 | 37 | 72 | 11 | 9 | 6 | 0 | 4.19 | 1.25 | 5.59 |
| 1982 | MLB | Baltimore Orioles | Baltimore Orioles | 36 | 35 | 236.0 | 233 | 110 | 104 | 76 | 103 | 24 | 15 | 11 | 0 | 3.97 | 1.31 | 3.93 |
| 1983 | MLB | Baltimore Orioles | Baltimore Orioles | 20 | 20 | 125.1 | 135 | 53 | 46 | 31 | 50 | 10 | 12 | 4 | 0 | 3.30 | 1.32 | 3.59 |
| 1984 | MLB | Baltimore Orioles | Baltimore Orioles | 34 | 34 | 226.2 | 213 | 103 | 89 | 81 | 115 | 24 | 13 | 13 | 0 | 3.53 | 1.30 | 4.57 |
| 1985 | MLB | Baltimore Orioles | Baltimore Orioles | 15 | 15 | 86.0 | 101 | 49 | 49 | 28 | 42 | 14 | 4 | 5 | 0 | 5.13 | 1.50 | 4.40 |
| 1986 | MLB | Baltimore Orioles | Baltimore Orioles | 29 | 28 | 172.0 | 179 | 95 | 81 | 66 | 96 | 15 | 7 | 11 | 0 | 4.24 | 1.42 | 5.02 |
| 1987 | MLB | Toronto Blue Jays - Baltimore Orioles | Toronto Blue Jays - Baltimore Orioles | 23 | 23 | 144.0 | 148 | 72 | 65 | 51 | 93 | 12 | 6 | 8 | 0 | 4.06 | 1.38 | 5.81 |
| 1988 | MLB | Toronto Blue Jays | Toronto Blue Jays | 34 | 34 | 211.0 | 220 | 106 | 98 | 80 | 99 | 23 | 13 | 13 | 0 | 4.18 | 1.42 | 4.22 |
| 1989 | MLB | Toronto Blue Jays | Toronto Blue Jays | 30 | 30 | 171.2 | 186 | 82 | 75 | 47 | 47 | 10 | 8 | 10 | 0 | 3.93 | 1.36 | 2.46 |
| 1990 | MLB | Toronto Blue Jays | Toronto Blue Jays | 5 | 5 | 20.1 | 28 | 14 | 12 | 8 | 5 | 3 | 2 | 2 | 0 | 5.31 | 1.77 | 2.21 |
| 1991 | MLB | Baltimore Orioles | Baltimore Orioles | 64 | 1 | 98.1 | 84 | 27 | 26 | 25 | 55 | 6 | 2 | 7 | 3 | 2.38 | 1.11 | 5.03 |
| 1992 | MLB | Baltimore Orioles | Baltimore Orioles | 42 | 0 | 34.2 | 50 | 34 | 31 | 23 | 17 | 3 | 0 | 0 | 0 | 8.05 | 2.11 | 4.41 |
| 1975–1992 | MLB | Career (18 yrs) | 526 | 404 | 2770.0 | 2806 | 1301 | 1199 | 890 | 1491 | 251 | 167 | 143 | 4 | 3.90 | 1.33 | 4.84 |