| Year | Team | G | AB | H | HR | RBI | SB | BB | K | AVG | OBP | SLG | OPS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1997 | Boston Red Sox | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 1.000 |
| 2.000 |
| 1998 | Boston Red Sox | 86 | 221 | 56 | 7 | 33 | 2 | 17 | 45 | .253 | .309 | .407 | .716 |
| 1999 | Boston Red Sox | 144 | 483 | 130 | 20 | 76 | 1 | 46 | 85 | .269 | .330 | .482 | .812 |
| 2000 | Boston Red Sox | 139 | 448 | 111 | 10 | 65 | 1 | 60 | 84 | .248 | .342 | .388 | .730 |
| 2001 | Boston Red Sox | 51 | 174 | 51 | 7 | 25 | 0 | 21 | 35 | .293 | .371 | .489 | .860 |
| 2002 | Boston Red Sox | 132 | 467 | 124 | 10 | 61 | 4 | 41 | 95 | .266 | .332 | .392 | .724 |
| 2003 | Boston Red Sox | 142 | 451 | 123 | 25 | 85 | 3 | 51 | 106 | .273 | .351 | .512 | .863 |
| 2004 | Boston Red Sox | 137 | 463 | 137 | 18 | 73 | 10 | 62 | 126 | .296 | .390 | .482 | .872 |
| 2005 | Boston Red Sox | 133 | 470 | 132 | 22 | 70 | 2 | 62 | 117 | .281 | .366 | .489 | .855 |
| 2006 | Boston Red Sox | 103 | 365 | 87 | 12 | 55 | 1 | 46 | 87 | .238 | .325 | .400 | .725 |
| 2007 | Boston Red Sox | 131 | 435 | 111 | 17 | 68 | 1 | 71 | 122 | .255 | .367 | .421 | .788 |
| 2008 | Boston Red Sox | 131 | 423 | 93 | 13 | 43 | 0 | 52 | 122 | .220 | .313 | .359 | .672 |
| 2009 | Boston Red Sox | 109 | 364 | 76 | 14 | 51 | 0 | 54 | 90 | .209 | .313 | .390 | .703 |
| 2010 | Boston Red Sox | 39 | 112 | 26 | 7 | 16 | 0 | 10 | 35 | .232 | .293 | .473 | .766 |
| 2011 | Boston Red Sox | 68 | 222 | 49 | 11 | 36 | 0 | 21 | 67 | .221 | .300 | .423 | .723 |
| Career | — | 1,546 | 5,099 | 1,307 | 193 | 757 | 25 | 614 | 1,216 | .256 | .341 | .435 | .776 |