| Season | Team | League | GP | G | A | TP | PIM | Playoffs | GP | G | A | TP | PIM | |
| 2008-2009 | Toronto Marlboros U15 AAA | GTHL U15 | - | - | - | - | - | | | ||||||
| Toronto Marlboros U15 AAA | OHF Bantam AAA | 6 | 1 | 2 | 3 | 0 | | | |||||||
| 2009-2010 | Toronto Marlboros U16 AAA | GTHL U16 | 80 | 25 | 44 | 69 | 16 | | | ||||||
| Toronto Marlboros U16 AAA | OHL Cup | 7 | 1 | 3 | 4 | 0 | | | |||||||
| 2010-2011 | St. Michael's Buzzers | OJHL | 49 | 17 | 22 | 39 | 18 | | | Playoffs | 3 | 0 | 1 | 1 | 0 |
| 2011-2012 | Erie Otters | OHL | 68 | 25 | 28 | 53 | 14 | | | ||||||
| 2012-2013 | Erie Otters | OHL | 63 | 28 | 41 | 69 | 39 | | | ||||||
| 2013-2014 | Erie Otters | OHL | 68 | 45 | 83 | 128 | 22 | | | Playoffs | 14 | 8 | 10 | 18 | 8 |
| OHL All-Stars | Jr Super Series | 2 | 0 | 0 | 0 | 2 | | | |||||||
| 2014-2015 | Toronto Marlies | AHL | 76 | 21 | 40 | 61 | 10 | | | Playoffs | 5 | 1 | 3 | 4 | 2 |
| 2015-2016 | Toronto Maple Leafs | NHL | 7 | 1 | 5 | 6 | 0 | | | ||||||
| Toronto Marlies | AHL | 34 | 11 | 18 | 29 | 8 | | | Playoffs | 15 | 7 | 2 | 9 | 6 | |
| 2016-2017 | Toronto Maple Leafs | NHL | 82 | 20 | 16 | 36 | 10 | | | Playoffs | 6 | 0 | 1 | 1 | 0 |
| 2017-2018 | Toronto Maple Leafs | NHL | 82 | 14 | 14 | 28 | 18 | | | Playoffs | 7 | 1 | 2 | 3 | 0 |
| 2018-2019 | Toronto Maple Leafs | NHL | 82 | 8 | 21 | 29 | 16 | | | Playoffs | 7 | 0 | 1 | 1 | 2 |
| 2019-2020 | Ottawa Senators | NHL | 71 | 16 | 27 | 43 | 24 | | | ||||||
| 2020-2021 | Ottawa Senators | NHL | 56 | 21 | 14 | 35 | 12 | | | ||||||
| Canada | WC | 10 | 2 | 14 | 16 | 2 | | | |||||||
| 2021-2022 | Ottawa Senators | NHL | 64 | 10 | 29 | 39 | 10 | | | ||||||
| 2022-2023 | Washington Capitals | NHL | 4 | 0 | 0 | 0 | 0 | | | ||||||
| 2023-2024 | Edmonton Oilers | NHL | 71 | 4 | 8 | 12 | 10 | | | Playoffs | 19 | 2 | 4 | 6 | 6 |
| 2024-2025 | Edmonton Oilers | NHL | 55 | 7 | 14 | 21 | 6 | | |