| Year | Team | G | AB | H | HR | RBI | SB | BB | K | AVG | OBP | SLG | OPS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1980 | Boston Red Sox | 9 | 24 | 5 | 0 | 1 | 0 | 0 | 5 | .208 | .208 | .208 |
| .416 |
| 1981 | Boston Red Sox | 62 | 205 | 59 | 5 | 26 | 0 | 9 | 31 | .288 | .317 | .434 | .751 |
| 1982 | Boston Red Sox | 92 | 289 | 72 | 4 | 26 | 0 | 10 | 37 | .249 | .279 | .363 | .642 |
| 1983 | Boston Red Sox | 81 | 204 | 60 | 2 | 18 | 0 | 15 | 37 | .294 | .345 | .412 | .757 |
| 1984 | Boston Red Sox | 133 | 449 | 121 | 24 | 72 | 0 | 29 | 72 | .269 | .312 | .506 | .818 |
| 1985 | Boston Red Sox | 144 | 498 | 147 | 18 | 80 | 2 | 50 | 79 | .295 | .362 | .484 | .846 |
| 1986 | Boston Red Sox | 135 | 462 | 119 | 16 | 65 | 1 | 37 | 61 | .258 | .315 | .424 | .739 |
| 1987 | Boston Red Sox | 52 | 151 | 31 | 1 | 13 | 0 | 10 | 24 | .205 | .250 | .278 | .528 |
| 1988 | Boston Red Sox | 95 | 299 | 69 | 9 | 39 | 0 | 18 | 49 | .231 | .279 | .368 | .647 |
| 1989 | Boston Red Sox | 93 | 260 | 55 | 4 | 16 | 0 | 23 | 47 | .212 | .273 | .292 | .565 |
| 1990 | Boston Red Sox | 10 | 15 | 3 | 0 | 0 | 0 | 5 | 6 | .200 | .429 | .200 | .629 |
| 1990 | Houston Astros | 40 | 104 | 21 | 1 | 10 | 0 | 15 | 24 | .202 | .300 | .298 | .598 |
| 1990 | 50 | 119 | 24 | 1 | 10 | 0 | 20 | 30 | .202 | .319 | .286 | .605 |
| 1991 | St. Louis Cardinals | 46 | 94 | 10 | 3 | 8 | 0 | 4 | 15 | .106 | .140 | .213 | .353 |
| 1992 | St. Louis Cardinals | 41 | 105 | 23 | 1 | 8 | 0 | 11 | 22 | .219 | .291 | .286 | .577 |
| Career | — | 1,033 | 3,159 | 795 | 88 | 382 | 3 | 236 | 509 | .252 | .304 | .399 | .703 |
