
| 1976-77 | OHA-B | Strathroy | 42 | 25 | 30 | 55 | - | - | - | - |
| 1977-78 | OMJHL | Kitchener | 68 | 22 | 42 | 64 | - | - | - | 115 |
| 1978-79 | OMJHL | Sudbury | 59 | 42 | 68 | 110 | - | - | - | 188 |
| 1979-80 | OMJHL | Sudbury | 61 | 34 | 51 | 85 | - | - | - | 189 |
| 1980-81 | NHL | Quebec Nordiques | 80 | 19 | 44 | 63 | 5 | 152 | 12.5% | 226 |
| 1981-82 | NHL | Quebec Nordiques | 80 | 22 | 50 | 72 | 26 | 124 | 17.7% | 272 |
| 1982-83 | NHL | Quebec Nordiques | 80 | 17 | 46 | 63 | 10 | 125 | 13.6% | 206 |
| 1983-84 | NHL | Quebec Nordiques | 77 | 24 | 55 | 79 | 34 | 123 | 19.5% | 232 |
| 1984-85 | NHL | Quebec Nordiques | 80 | 20 | 52 | 72 | 25 | 118 | 17.0% | 209 |
| 1985-86 | NHL | Quebec Nordiques | 80 | 28 | 42 | 70 | 7 | 151 | 18.5% | 265 |
| 1986-87 | NHL | Quebec Nordiques | 46 | 10 | 29 | 39 | 5 | 53 | 18.9% | 135 |
| 1987-88 | NHL | Washington Capitals | 79 | 22 | 37 | 59 | 7 | 126 | 17.5% | 240 |
| 1988-89 | NHL | Washington Capitals | 80 | 20 | 37 | 57 | -3 | 138 | 14.5% | 219 |
| 1989-90 | NHL | Washington Capitals | 80 | 23 | 39 | 62 | 17 | 123 | 18.7% | 233 |
| 1989-90 | Fr-Tour | Washington | 4 | 1 | 2 | 3 | - | - | - | 4 |
| 1990-91 | NHL | Washington Capitals | 76 | 16 | 30 | 46 | -22 | 106 | 15.1% | 234 |
| 1991-92 | NHL | Washington Capitals | 80 | 28 | 50 | 78 | -2 | 110 | 25.5% | 205 |
| 1992-93 | NHL | Washington Capitals | 84 | 20 | 59 | 79 | 3 | 120 | 16.7% | 198 |
| 1993-94 | NHL | Washington Capitals | 52 | 9 | 29 | 38 | -4 | 61 | 14.8% | 131 |
| 1994-95 | NHL | Washington Capitals | 45 | 8 | 15 | 23 | -4 | 73 | 11.0% | 101 |
| 1995-96 | NHL | Washington Capitals | 82 | 13 | 24 | 37 | 5 | 128 | 10.2% | 112 |
| 1996-97 | NHL | Washington Capitals | 82 | 14 | 32 | 46 | -2 | 110 | 12.7% | 125 |
| 1997-98 | NHL | Washington Capitals | 82 | 8 | 18 | 26 | 1 | 82 | 9.8% | 103 |
| 1998-99 | NHL | Washington Capitals | 50 | 0 | 5 | 5 | -7 | 18 | 0.0% | 102 |
| 1998-99 | NHL | Colorado Avalanche | 12 | 2 | 4 | 6 | 0 | 6 | 33.3% | 17 |
| NHL Totals | – | 1407 | 323 | 697 | 1020 | 101 | 2047 | 15.8% | 3565 | |
| 1977-78 | OMJHL | Kitchener | 9 | 1 | 0 | 1 | - | - | - | 32 |
| 1978-79 | OMJHL | Sudbury | 10 | 4 | 12 | 16 | - | - | - | 47 |
| 1979-80 | OMJHL | Sudbury | 9 | 6 | 9 | 15 | - | - | - | 45 |
| 1980-81 | NHL | Quebec Nordiques | 5 | 4 | 2 | 6 | -4 | 12 | 33.3% | 34 |
| 1981-82 | NHL | Quebec Nordiques | 16 | 3 | 7 | 10 | -9 | 14 | 21.4% | 52 |
| 1982-83 | NHL | Quebec Nordiques | 4 | 2 | 1 | 3 | 0 | 7 | 28.6% | 24 |
| 1983-84 | NHL | Quebec Nordiques | 9 | 2 | 3 | 5 | 1 | 9 | 22.2% | 41 |
| 1984-85 | NHL | Quebec Nordiques | 17 | 4 | 6 | 10 | -4 | 21 | 19.1% | 99 |
| 1985-86 | NHL | Quebec Nordiques | 3 | 0 | 0 | 0 | -1 | 9 | 0.0% | 15 |
| 1986-87 | NHL | Quebec Nordiques | 13 | 1 | 7 | 8 | -4 | 15 | 6.7% | 56 |
| 1987-88 | NHL | Washington Capitals | 14 | 7 | 5 | 12 | 2 | 24 | 29.2% | 98 |
| 1988-89 | NHL | Washington Capitals | 6 | 0 | 4 | 4 | 3 | 7 | 0.0% | 29 |
| 1989-90 | NHL | Washington Capitals | 15 | 4 | 8 | 12 | -1 | 13 | 30.8% | 61 |
| 1990-91 | NHL | Washington Capitals | 11 | 1 | 9 | 10 | 2 | 16 | 6.3% | 41 |
| 1991-92 | NHL | Washington Capitals | 7 | 1 | 4 | 5 | -1 | 16 | 6.3% | 16 |
| 1992-93 | NHL | Washington Capitals | 6 | 7 | 1 | 8 | -7 | 18 | 38.9% | 35 |
| 1993-94 | NHL | Washington Capitals | 7 | 0 | 3 | 3 | -2 | 7 | 0.0% | 14 |
| 1994-95 | NHL | Washington Capitals | 7 | 4 | 4 | 8 | 0 | 13 | 30.8% | 24 |
| 1995-96 | NHL | Washington Capitals | 6 | 1 | 5 | 6 | 4 | 14 | 7.1% | 24 |
| 1997-98 | NHL | Washington Capitals | 21 | 0 | 4 | 4 | -1 | 14 | 0.0% | 30 |
| 1998-99 | NHL | Colorado Avalanche | 19 | 1 | 3 | 4 | 0 | 10 | 10.0% | 38 |
| NHL Totals | – | 186 | 42 | 76 | 118 | -22 | 239 | 17.6% | 731 | |
| Season | Opponent | Date | G | A | P | +/- | PIM | PPG | SHG | S | Shifts | TOI |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Playoffs | @ DAL | Jun 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 6:25 |
| Playoffs | vs DAL | Jun 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 3:47 |
| Playoffs | @ DAL | May 30 | 0 | 1 | 1 | 1 | 4 | 0 | 0 | 1 | 10 | 5:02 |
| Playoffs | vs DAL | May 28 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 9 | 5:32 |
| Playoffs | vs DAL | May 26 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 5:11 |