| Position | G |
| Birth city | Bratislava, undefined, SVK |
| Birth date | 1985-05-13 (41) |
| Height | 5'11'' |
| weight (lb) | 189 |
| Drafted | pick 10 round 9 by MTL in 2003 |
season | L | T. | GP | GA | GAA | W | L | OT | SO | S% | G | A |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2006-07 | NHL | Montréal Canadiens | 16 | 44 | 2.89 | 10 | 6 | 0 | 2 | 0.906 | 0 | 1 |
| 2007-08 | NHL | Montréal Canadiens | 6 | 10 | 2.11 | 2 | 1 | 1 | 1 | 0.934 | 0 | 0 |
| 2008-09 | NHL | Montréal Canadiens | 34 | 92 | 2.86 | 18 | 14 | 1 | 1 | 0.915 | 0 | 0 |
| 2009-10 | NHL | Montréal Canadiens | 45 | 105 | 2.40 | 26 | 13 | 5 | 5 | 0.924 | 0 | 0 |
| 2010-11 | NHL | St. Louis Blues | 57 | 136 | 2.48 | 27 | 21 | 7 | 7 | 0.910 | 0 | 0 |
| 2011-12 | NHL | St. Louis Blues | 46 | 90 | 1.97 | 26 | 12 | 7 | 6 | 0.926 | 0 | 0 |
| 2012-13 | NHL | St. Louis Blues | 16 | 29 | 2.14 | 6 | 5 | 1 | 3 | 0.899 | 0 | 1 |
| 2013-14 | NHL | St. Louis Blues | 40 | 83 | 2.23 | 24 | 9 | 4 | 4 | 0.917 | 0 | 1 |
| 2013-14 | NHL | Washington Capitals | 12 | 27 | 2.31 | 5 | 4 | 3 | 1 | 0.930 | 0 | 0 |
| 2014-15 | NHL | New York Islanders | 59 | 144 | 2.43 | 38 | 17 | 4 | 6 | 0.914 | 0 | 1 |
| 2015-16 | NHL | New York Islanders | 36 | 80 | 2.30 | 18 | 13 | 4 | 3 | 0.919 | 0 | 1 |
| 2016-17 | NHL | New York Islanders | 28 | 75 | 2.80 | 12 | 9 | 5 | 2 | 0.915 | 0 | 1 |
| 2017-18 | NHL | New York Islanders | 54 | 161 | 3.19 | 20 | 26 | 6 | 1 | 0.908 | 0 | 0 |
| 2018-19 | NHL | Boston Bruins | 40 | 90 | 2.34 | 22 | 11 | 4 | 5 | 0.922 | 0 | 4 |
| 2019-20 | NHL | Boston Bruins | 31 | 73 | 2.39 | 18 | 6 | 6 | 3 | 0.919 | 0 | 2 |
| 2020-21 | NHL | Boston Bruins | 19 | 46 | 2.53 | 9 | 6 | 4 | 2 | 0.905 | 0 | 0 |
| 2021-22 | NHL | Vancouver Canucks | 17 | 39 | 2.94 | 4 | 7 | 2 | 0 | 0.902 | 0 | 0 |
| 2022-23 | NHL | New York Rangers | 25 | 66 | 2.72 | 10 | 9 | 5 | 1 | 0.903 | 0 | 1 |
| NHL Total | 581 | 1390 | 2.50 | 295 | 189 | 69 | 53 | 0.915 | 0 | 13 | ||
season | L | T. | GP | GA | GAA | W | L | OT | SO | S% | G | A |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2007-08 | NHL | Montréal Canadiens | 2 | 3 | 2.33 | 0 | 1 | 0 | 0.889 | 0 | 0 | |
| 2008-09 | NHL | Montréal Canadiens | 1 | 0 | 0.00 | 0 | 1.000 | 0 | 0 | |||
| 2009-10 | NHL | Montréal Canadiens | 18 | 43 | 2.55 | 9 | 9 | 0 | 0.923 | 0 | 0 | |
| 2011-12 | NHL | St. Louis Blues | 2 | 3 | 1.72 | 1 | 1 | 0 | 0.935 | 0 | 0 | |
| 2014-15 | NHL | New York Islanders | 7 | 16 | 2.30 | 3 | 4 | 0 | 0.926 | 0 | 0 | |
| 2019-20 | NHL | Boston Bruins | 9 | 25 | 2.76 | 4 | 5 | 0 | 0 | 0.902 | 0 | 0 |
| NHL Total | 39 | 90 | 2.48 | 17 | 20 | 0 | 0 | 0.919 | 0 | 0 | ||