
| 2001-02 | USHS-PA | Hershey High | 18 | 16 | 21 | 37 | - | - | - | - |
| 2002-03 | MetJHL | Central Penn Panthers | 31 | 11 | 17 | 28 | - | - | - | 119 |
| 2002-03 | USHS-PA | Hershey High | 13 | 18 | 23 | 41 | - | - | - | - |
| 2003-04 | U-17 | USNTDP | 18 | 7 | 9 | 16 | - | - | - | 28 |
| 2003-04 | NAHL | USNTDP | 43 | 8 | 12 | 20 | - | - | - | 44 |
| 2004-05 | U-18 | USNTDP | 4 | 2 | 1 | 3 | - | - | - | 0 |
| 2004-05 | OHL | Sudbury | 65 | 10 | 28 | 38 | 5 | - | - | 111 |
| 2005-06 | OHL | Sudbury | 65 | 24 | 46 | 70 | 19 | - | - | 146 |
| 2006-07 | OHL | Sudbury | 66 | 31 | 57 | 88 | 13 | - | - | 135 |
| 2007-08 | NHL | Ottawa Senators | 45 | 6 | 3 | 9 | 0 | 44 | 13.6% | 20 |
| 2007-08 | AHL | Binghamton | 28 | 6 | 13 | 19 | 4 | - | - | 16 |
| 2008-09 | NHL | Ottawa Senators | 81 | 17 | 15 | 32 | -10 | 145 | 11.7% | 59 |
| 2009-10 | NHL | Ottawa Senators | 61 | 9 | 17 | 26 | 6 | 83 | 10.8% | 53 |
| 2010-11 | NHL | Ottawa Senators | 82 | 14 | 20 | 34 | -19 | 149 | 9.4% | 43 |
| 2011-12 | NHL | Ottawa Senators | 82 | 15 | 32 | 47 | 2 | 153 | 9.8% | 124 |
| 2012-13 | NHL | Columbus Blue Jackets | 45 | 6 | 13 | 19 | 6 | 69 | 8.7% | 28 |
| 2013-14 | NHL | Columbus Blue Jackets | 70 | 18 | 21 | 39 | 5 | 111 | 16.2% | 96 |
| 2014-15 | NHL | Columbus Blue Jackets | 79 | 31 | 42 | 73 | 16 | 182 | 17.0% | 50 |
| 2015-16 | NHL | Columbus Blue Jackets | 72 | 12 | 25 | 37 | -14 | 149 | 8.1% | 53 |
| 2016-17 | NHL | Columbus Blue Jackets | 79 | 26 | 25 | 51 | -4 | 185 | 14.1% | 55 |
| 2017-18 | NHL | Columbus Blue Jackets | 72 | 15 | 18 | 33 | 1 | 137 | 11.0% | 50 |
| 2018-19 | NHL | Columbus Blue Jackets | 73 | 17 | 18 | 35 | 12 | 141 | 12.1% | 44 |
| 2019-20 | NHL | Columbus Blue Jackets | 67 | 10 | 21 | 31 | -3 | 131 | 7.6% | 62 |
| 2020-21 | NHL | Columbus Blue Jackets | 42 | 7 | 9 | 16 | -3 | 73 | 9.6% | 28 |
| 2020-21 | NHL | Toronto Maple Leafs | 7 | 0 | 4 | 4 | 5 | 8 | 0.0% | 4 |
| 2021-22 | NHL | Boston Bruins | 64 | 2 | 11 | 13 | -13 | 99 | 2.0% | 61 |
| 2022-23 | NHL | Boston Bruins | 60 | 10 | 16 | 26 | 18 | 71 | 14.1% | 45 |
| 2023-24 | NHL | Chicago Blackhawks | 74 | 17 | 20 | 37 | -29 | 146 | 11.6% | 57 |
| 2024-25 | NHL | Chicago Blackhawks | 78 | 15 | 20 | 35 | -17 | 104 | 14.4% | 48 |
| 2025-26 | NHL | Chicago Blackhawks | 33 | 2 | 8 | 10 | 1 | 27 | 7.4% | 23 |
| NHL Totals | – | 1266 | 249 | 358 | 607 | -40 | 2207 | 11.3% | 1003 | |
| AHL Totals | – | 28 | 6 | 13 | 19 | 4 | - | - | 16 | |
| Juniors Totals | – | 196 | 65 | 131 | 196 | 37 | - | - | 392 | |
| 2003-04 | NAHL | USNTDP | 7 | 2 | 1 | 3 | - | - | - | 8 |
| 2004-05 | OHL | Sudbury | 12 | 5 | 5 | 10 | 4 | - | - | 16 |
| 2005-06 | OHL | Sudbury | 10 | 1 | 3 | 4 | 0 | - | - | 28 |
| 2006-07 | OHL | Sudbury | 21 | 12 | 17 | 29 | 14 | - | - | 36 |
| 2007-08 | NHL | Ottawa Senators | 4 | 1 | 0 | 1 | 0 | 6 | 16.7% | 2 |
| 2009-10 | NHL | Ottawa Senators | 6 | 0 | 1 | 1 | -1 | 11 | 0.0% | 2 |
| 2011-12 | NHL | Ottawa Senators | 7 | 1 | 3 | 4 | -1 | 17 | 5.9% | 8 |
| 2013-14 | NHL | Columbus Blue Jackets | 4 | 2 | 0 | 2 | 0 | 3 | 66.7% | 4 |
| 2016-17 | NHL | Columbus Blue Jackets | 4 | 0 | 2 | 2 | -3 | 12 | 0.0% | 6 |
| 2017-18 | NHL | Columbus Blue Jackets | 6 | 2 | 1 | 3 | -4 | 8 | 25.0% | 4 |
| 2018-19 | NHL | Columbus Blue Jackets | 10 | 1 | 2 | 3 | 2 | 16 | 6.3% | 4 |
| 2019-20 | NHL | Columbus Blue Jackets | 10 | 2 | 4 | 6 | 1 | 19 | 10.5% | 10 |
| 2020-21 | NHL | Toronto Maple Leafs | 4 | 0 | 1 | 1 | 2 | 7 | 0.0% | 5 |
| 2021-22 | NHL | Boston Bruins | 7 | 0 | 1 | 1 | 2 | 6 | 0.0% | 4 |
| 2022-23 | NHL | Boston Bruins | 6 | 1 | 2 | 3 | 0 | 7 | 14.3% | 18 |
| NHL Totals | – | 68 | 10 | 17 | 27 | -2 | 112 | 8.9% | 67 | |
| Juniors Totals | – | 43 | 18 | 25 | 43 | 18 | - | - | 80 | |
| Season | Opponent | Date | G | A | P | +/- | PIM | PPG | SHG | S | Shifts | TOI |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Regular | @ CBJ | Feb 4 | 0 | 0 | 0 | -1 | 0 | 0 | 0 | 1 | 15 | 11:44 |
| Regular | @ PIT | Jan 29 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1:18 |
| Regular | @ MIN | Jan 27 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 15 | 12:50 |
| Regular | vs FLA | Jan 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 19 | 13:23 |
| Regular | vs TBL | Jan 23 | 0 | 0 | 0 | 1 | 5 | 0 | 0 | 0 | 7 | 5:41 |
| Year | Award |
|---|---|
| 2016-17 | King Clancy Memorial Trophy |
| 2016-17 | Mark Messier NHL Leadership Award |