Drafted 29 overall (2017 Round 1, Pick 29) by the Chicago Blackhawks. View all Chicago Blackhawks draft picks →
Regular-season goals and assists stacked to total points.
Total regular-season points across each season played.
| Regular Season | Playoffs | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | Team | Lge | GP | G | A | PTS | +/- | PIM | GP | G | A | PTS | +/- | PIM |
| 2011-12 | Finland Selects U13 | QC-INT-PW | 3 | 0 | 0 | 0 | — | 2 | 3 | 0 | 0 | 0 | — | 2 |
| 2013-14 | Jokerit U16 | JR-C-SM-SARJA | 32 | 6 | 17 | 23 | 0 | 14 | 9 | 3 | 3 | 6 | 0 | 4 |
| 2014-15 | Jokerit U18 | JR-B-SM-SARJA | 37 | 8 | 22 | 30 | 0 | 6 | 10 | 4 | 2 | 6 | 0 | 2 |
| 2015-16 | Finland U17 | WHC-17 | 5 | 1 | 0 | 1 | — | 2 | — | — | — | — | — | — |
| 2015-16 | Tappara U20 | U20-SM-LIIGA | 47 | 9 | 20 | 29 | 17 | 20 | 3 | 1 | 2 | 3 | 1 | 4 |
| 2015-16 | Tappara U18 | U18-SM-SARJA | — | — | — | — | — | — | 3 | 0 | 2 | 2 | — | 10 |
| 2015-16 | Finland U18 | IVAN-HLINKA-MEMORIAL | 5 | 0 | 2 | 2 | 2 | 0 | — | — | — | — | — | — |
| 2015-16 | Finland U18 | WJC-18 | 7 | 0 | 3 | 3 | 3 | 10 | — | — | — | — | — | — |
| 2016-17 | Portland Winterhawks | WHL | 71 | 9 | 39 | 48 | 14 | 38 | 11 | 0 | 3 | 3 | -8 | 4 |
| 2017-18 | Portland Winterhawks | WHL | 63 | 12 | 59 | 71 | 47 | 14 | 12 | 3 | 5 | 8 | -8 | 2 |
| 2017-18 | Finland | EHT | 6 | 2 | 1 | 3 | -1 | 2 | — | — | — | — | — | — |
| 2017-18 | Finland U20 | WJC-20 | 5 | 2 | 2 | 4 | 2 | 2 | — | — | — | — | — | — |
| 2018-19 | Finland | EHT | 3 | 0 | 1 | 1 | 1 | 16 | — | — | — | — | — | — |
| 2018-19 | Finland | WC | 10 | 0 | 3 | 3 | 1 | 2 | — | — | — | — | — | — |
| 2018-19 | Finland U20 | WJC-20 | 7 | 2 | 3 | 5 | 6 | 2 | — | — | — | — | — | — |
| 2018-19 | Rockford IceHogs | AHL | 30 | 2 | 15 | 17 | 7 | 14 | — | — | — | — | — | — |
| 2018-19 | Chicago Blackhawks | NHL | 38 | 0 | 12 | 12 | -7 | 16 | — | — | — | — | — | — |
| 2019-20 | Buffalo Sabres | NHL | 69 | 4 | 11 | 15 | -6 | 32 | — | — | — | — | — | — |
| 2020-21 | Buffalo Sabres | NHL | 46 | 3 | 5 | 8 | -11 | 4 | — | — | — | — | — | — |
| 2021-22 | Finland | EHT | 1 | 0 | 0 | 0 | -2 | 2 | — | — | — | — | — | — |
| 2021-22 | Buffalo Sabres | NHL | 60 | 3 | 16 | 19 | -8 | 20 | — | — | — | — | — | — |
| 2022-23 | Buffalo Sabres | NHL | 60 | 3 | 10 | 13 | -12 | 30 | — | — | — | — | — | — |
| 2023-24 | Buffalo Sabres | NHL | 74 | 3 | 17 | 20 | 14 | 24 | — | — | — | — | — | — |
| 2024-25 | Boston Bruins | NHL | 18 | 0 | 4 | 4 | 7 | 2 | — | — | — | — | — | — |
| 2024-25 | Finland | 4-NATIONS | 3 | 1 | 0 | 1 | -1 | 0 | — | — | — | — | — | — |
| 2024-25 | Buffalo Sabres | NHL | 42 | 3 | 3 | 6 | 6 | 12 | — | — | — | — | — | — |
| 2025-26 | Boston Bruins | NHL | 41 | 2 | 13 | 15 | 2 | 14 | 2 | 0 | 0 | 0 | 1 | 0 |
| 2025-26 | Finland | OG | 6 | 0 | 1 | 1 | 2 | 0 | — | — | — | — | — | — |
| Totals | 789 | 75 | 279 | 354 | 83 | 300 | 53 | 11 | 17 | 28 | -14 | 28 | ||
NHL possession & on-ice metrics. CF/FF are shot-attempt shares (Corsi/Fenwick); PDO, zone starts, and on-ice SH% are 5-on-5; GF% is on-ice even-strength.
| Regular Season | Playoffs | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | Team | Lge | GP | CF% | CF% Rel | FF% | oiSH% | oZS% | PDO | GF% | HIT | BLK | TK | GV | GP | CF% | CF% Rel | FF% | oiSH% | oZS% | PDO | GF% | HIT | BLK | TK | GV |
| 2018-19 | CHI | NHL | 38 | 54.1 | +5.9 | 52.4 | 6.7 | 37.9 | 96.3 | 45.7 | 48 | 37 | 7 | 26 | — | — | — | — | — | — | — | — | — | — | — | — |
| 2019-20 | BUF | NHL | 69 | 49.9 | +1.6 | 49.4 | 7.5 | 33.7 | 98.7 | 46.6 | 74 | 63 | 7 | 30 | — | — | — | — | — | — | — | — | — | — | — | — |
| 2020-21 | BUF | NHL | 46 | 47.4 | +1.8 | 47.7 | 6.9 | 35.9 | 98.9 | 41.5 | 47 | 53 | 9 | 12 | — | — | — | — | — | — | — | — | — | — | — | — |
| 2021-22 | BUF | NHL | 60 | 48.5 | +0.2 | 46.6 | 7.8 | 37.5 | 99.1 | 45.8 | 73 | 60 | 12 | 36 | — | — | — | — | — | — | — | — | — | — | — | — |
| 2022-23 | BUF | NHL | 60 | 50.7 | -0.3 | 49.3 | 9.6 | 35.3 | 98.9 | 44.7 | 63 | 58 | 20 | 32 | — | — | — | — | — | — | — | — | — | — | — | — |
| 2023-24 | BUF | NHL | 74 | 48.9 | -3.0 | 48.9 | 9.5 | 35.7 | 101.9 | 56.6 | 92 | 106 | 18 | 29 | — | — | — | — | — | — | — | — | — | — | — | — |
| 2024-25 | BUF,BOS | NHL | 60 | 51.2 | +2.8 | 49.9 | 11.4 | 32.2 | 103.2 | 56.2 | 50 | 53 | 13 | 64 | — | — | — | — | — | — | — | — | — | — | — | — |
| 2025-26 | BOS | NHL | 41 | 50.5 | +1.3 | 50.6 | 11.8 | 28.7 | 101.2 | 51.4 | 27 | 37 | 6 | 48 | 2 | 50.0 | -0.7 | 51.1 | 6.6 | 23.8 | 106.6 | 100.0 | 2 | 2 | 0 | 2 |