| Year | Event | GP | G | A | PTS | PIM |
|---|---|---|---|---|---|---|
| 2012 | Winter Youth Olympic Games | 6 | 2 | 4 | 6 | 4 |
| 2013 | IIHF Men's Under-18 World Championship | 7 | 1 | 1 | 2 | 6 |
| 2014 | IIHF Men's Under-18 World Championship | 7 | 5 | 5 | 10 | 2 |
| IIHF World Junior Championship | 5 | 1 | 4 | 5 | 0 | |
| 2015 | IIHF World Junior Championship | 5 | 1 | 3 | 4 | 6 |
| IIHF Men's World Championship | 10 | 2 | 5 | 7 | 8 | |
| 2017 | IIHF Men's World Championship | 8 | 0 | 5 | 5 | 4 |
| 2019 | IIHF Men's World Championship | 8 | 2 | 6 | 8 | 2 |
| 2025 | 4 Nations Face-Off | 4 | 0 | 4 | 4 | 0 |
| TEAM USA TOTALS | 60 | 14 | 37 | 51 | 32 |
| YEAR | TEAM | GP | G | A | PTS | PIM | Playoffs | GP | G | A | PTS | PIM |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2012-13 | NTDP | 93 | 42 | 37 | 79 | 44 | ||||||
| 2013-14 | NTDP | 77 | 58 | 74 | 132 | 48 | ||||||
| 2014-15 | Boston University (HEA) | 40 | 26 | 45 | 71 | 28 | ||||||
| 2015-16 | Buffalo Sabres (NHL) | 81 | 24 | 32 | 56 | 22 | ||||||
| 2016-17 | Buffalo Sabres (NHL) | 61 | 24 | 33 | 57 | 22 | ||||||
| 2017-18 | Buffalo Sabres (NHL) | 67 | 25 | 39 | 64 | 32 | ||||||
| 2018-19 | Buffalo Sabres (NHL) | 77 | 28 | 54 | 82 | 26 | ||||||
| 2019-20 | Buffalo Sabres (NHL) | 68 | 36 | 42 | 78 | 34 | ||||||
| 2020-21 | Buffalo Sabres (NHL) | 21 | 2 | 16 | 18 | 6 | ||||||
| 2021-22 | Vegas Golden Knights (NHL) | 34 | 14 | 11 | 25 | 10 | ||||||
| 2022-23 | Vegas Golden Knights (NHL) | 67 | 27 | 39 | 66 | 6 | 22 | 6 | 20 | 26 | 14 | |
| 2023-24 | Vegas Golden Knights (NHL) | 63 | 31 | 37 | 68 | 27 | 7 | 3 | 4 | 7 | 0 | |
| 2024-25 | Vegas Golden Knights (NHL) | 77 | 28 | 66 | 94 | 8 | 11 | 1 | 9 | 10 | 0 |