

| Regular Season | Playoffs | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | League | Team | GP | G | A | Pts | PIM | +/- | GP | G | A | Pts | PIM | +/- |
| 2013-14 | OHL | London Knights | 64 | 13 | 46 | 59 | 24 | 38 | 9 | 3 | 6 | 9 | 4 | 3 |
| 2014-15 | OHL | London Knights | 63 | 44 | 82 | 126 | 53 | 36 | 7 | 9 | 7 | 16 | 8 | 6 |
| 2015-16 | OHL | London Knights | 57 | 39 | 77 | 116 | 68 | 45 | 18 | 16 | 28 | 44 | 8 | 30 |
| 2016-17 | NHL | Toronto Maple Leafs | 77 | 19 | 42 | 61 | 38 | 0 | 6 | 1 | 3 | 4 | 0 | 1 |
| 2017-18 | NHL | Toronto Maple Leafs | 82 | 22 | 47 | 69 | 26 | -1 | 7 | 2 | 7 | 9 | 4 | 2 |
| 2018-19 | NHL | Toronto Maple Leafs | 82 | 26 | 68 | 94 | 22 | 22 | 7 | 2 | 2 | 4 | 2 | -4 |
| 2019-20 | NHL | Toronto Maple Leafs | 59 | 16 | 51 | 67 | 16 | 6 | 5 | 0 | 4 | 4 | 2 | -1 |
| 2020-21 | NHL | Toronto Maple Leafs | 55 | 20 | 47 | 67 | 20 | 21 | 7 | 0 | 4 | 4 | 4 | 1 |
| 2021-22 | NHL | Toronto Maple Leafs | 72 | 35 | 62 | 97 | 16 | 23 | 7 | 2 | 6 | 8 | 2 | 3 |
| 2022-23 | NHL | Toronto Maple Leafs | 80 | 30 | 69 | 99 | 28 | 18 | 11 | 3 | 11 | 14 | 2 | 7 |
| 2023-24 | NHL | Toronto Maple Leafs | 69 | 26 | 59 | 85 | 18 | 21 | 7 | 1 | 2 | 3 | 2 | 1 |
| 2024-25 | NHL | Toronto Maple Leafs | 81 | 27 | 75 | 102 | 14 | 18 | 13 | 2 | 11 | 13 | 2 | -1 |
| 2025-26 | NHL | Vegas Golden Knights | 66 | 19 | 50 | 69 | 20 | 18 | -- | -- | -- | -- | -- | -- |
| NHL TOTALS | 723 | 240 | 570 | 810 | 218 | 146 | 70 | 13 | 50 | 63 | 20 | 9 | ||
| Year | Tournament | Team | GP | G | A | Pts | PIM | +/- |
|---|---|---|---|---|---|---|---|---|
| 2014 | Memorial Cup | London Knights | 3 | 0 | 1 | 1 | 2 | 0 |
| 2016 | World Junior U-20 Championships | Team Canada | 5 | 4 | 2 | 6 | 4 | 0 |
| 2016 | Memorial Cup | London Knights | 4 | 2 | 12 | 14 | 4 | 10 |
| 2017 | IIHF World Championship | Team Canada | 10 | 4 | 8 | 12 | 8 | 1 |
| 2025 | Four Nations Face-off | Team Canada | 4 | 1 | 2 | 3 | 0 | 0 |
| 2026 | Olympics | Team Canada | 6 | 1 | 4 | 5 | 0 | 5 |