| Season | Team | League | GP | G | A | TP | PIM | Playoffs | GP | G | A | TP | PIM | |
| 2000-2001 | Boston Icemen | Brick Invitational | - | - | - | - | - | | | ||||||
| 2002-2003 | Detroit Honeybaked | QC Int PW | - | - | - | - | - | | | ||||||
| 2004-2005 | Honeybaked 15U AAA | T1EHL 15U | 28 | 3 | 12 | 15 | 22 | | | ||||||
| 2005-2006 | Belle Tire 14U AAA | T1EHL 14U | 26 | 3 | 18 | 21 | 16 | | | ||||||
| 2006-2007 | Belle Tire 16U AAA | T1EHL 16U | 31 | 2 | 15 | 17 | 40 | | | ||||||
| 2007-2008 | Compuware 18U AAA | T1EHL 18U | 25 | 0 | 5 | 5 | 30 | | | ||||||
| 2008-2009 | Indiana Ice | USHL | 59 | 10 | 37 | 47 | 50 | | | Playoffs | 13 | 1 | 6 | 7 | 13 |
| 2009-2010 | Michigan State Univ. | NCAA | 38 | 3 | 18 | 21 | 67 | | | ||||||
| 2010-2011 | Michigan State Univ. | NCAA | 38 | 11 | 17 | 28 | 59 | | | ||||||
| 2011-2012 | Michigan State Univ. | NCAA | 38 | 12 | 22 | 34 | 51 | | | ||||||
| Boston Bruins | NHL | 2 | 0 | 1 | 1 | 0 | | | |||||||
| 2012-2013 | Boston Bruins | NHL | 1 | 0 | 1 | 1 | 0 | | | Playoffs | 15 | 4 | 2 | 6 | 0 |
| Providence Bruins | AHL | 63 | 13 | 32 | 45 | 37 | | | Playoffs | 7 | 0 | 3 | 3 | 2 | |
| 2013-2014 | Boston Bruins | NHL | 79 | 14 | 26 | 40 | 28 | | | Playoffs | 12 | 2 | 8 | 10 | 6 |
| 2014-2015 | Boston Bruins | NHL | 78 | 12 | 27 | 39 | 20 | | | ||||||
| USA | WC | 10 | 2 | 3 | 5 | 8 | | | |||||||
| 2015-2016 | Boston Bruins | NHL | 81 | 4 | 40 | 44 | 33 | | | ||||||
| 2016-2017 | Boston Bruins | NHL | 81 | 8 | 43 | 51 | 37 | | | ||||||
| 2017-2018 | Boston Bruins | NHL | 76 | 14 | 45 | 59 | 36 | | | Playoffs | 11 | 3 | 9 | 12 | 8 |
| 2018-2019 | Boston Bruins | NHL | 64 | 6 | 47 | 53 | 33 | | | Playoffs | 24 | 2 | 16 | 18 | 10 |
| 2019-2020 | Boston Bruins | NHL | 61 | 9 | 40 | 49 | 33 | | | Playoffs | 13 | 0 | 6 | 6 | 22 |
| 2020-2021 | St. Louis Blues | NHL | 51 | 2 | 30 | 32 | 25 | | | Playoffs | 4 | 0 | 2 | 2 | 2 |
| 2021-2022 | St. Louis Blues | NHL | 64 | 9 | 34 | 43 | 48 | | | Playoffs | 3 | 0 | 3 | 3 | 0 |
| 2022-2023 | St. Louis Blues | NHL | 63 | 7 | 25 | 32 | 49 | | | ||||||
| 2023-2024 | St. Louis Blues | NHL | 77 | 4 | 35 | 39 | 32 | | | ||||||
| 2024-2025 | St. Louis Blues | NHL | 0 | 0 | 0 | 0 | 0 | | | ||||||
| 2025-2026 | St. Louis Blues | NHL | 0 | 0 | 0 | 0 | 0 | | |