Defensive · Korona Kielce · season-by-season, by competition, and every match.
A career still climbing — Gustafson is at his peak right now, and the curve hasn't flattened.
The record covers 6 seasons (2020/21–2025/26) across 2 clubs, including a move abroad — 119 appearances, 17 goals and 19 assists.
His best campaign on record is 2025/26 at BK Hacken — Season rating 39, 4 goals and 3 assists in 22 games. 2024/25 was the leap — Season rating up 20 points at BK Hacken. Form is on a climb — up 26 Season points across his last 3 full seasons.
| Competition | Apps | Min | G | A | Rating |
|---|---|---|---|---|---|
| Allsvenskan | 22 | 1857 | 4 | 3 | 7.4 |
| Ekstraklasa | 14 | 639 | 0 | 0 | 6.6 |
| UEFA Europa Conference League | 7 | 630 | 2 | 1 | 6.9 |
Also spent part of this season at BK Hacken — those games aren't in this club's schedule.
| Date | Competition | Opponent | Res | Status | Min | G | A | Rating |
|---|---|---|---|---|---|---|---|---|
| Jan 14 | Friendlies Clubs | H Nyiregyhaza | 0-0 | Not in squad | — | |||
| Jan 18 | Friendlies Clubs | H Gangwon FC | 0-0 | Not in squad | — | |||
| Jan 21 | Friendlies Clubs | H Baník Ostrava | 3-1 | Not in squad | — | |||
| Jan 24 | Friendlies Clubs | A Struga | 0-1 | Not in squad | — | |||
| Jun 28 | Friendlies Clubs | H Polonia Warszawa | 0-0 | Not in squad | — | |||
| Jul 9 | Friendlies Clubs | H Stal Rzeszów | 4-4 | Not in squad | — | |||
| Jul 12 | Friendlies Clubs | H Maccabi Netanya | 0-1 | Not in squad | — | |||
| Jul 19 | Ekstraklasa | A Wisla Plock | 0-2 | Not in squad | — | |||
| Jul 27 | Ekstraklasa | H Legia Warszawa | 0-2 | Not in squad | — | |||
| Aug 1 | Ekstraklasa | A Zaglebie Lubin | 1-1 | Not in squad | — | |||
| Aug 8 | Ekstraklasa | H Radomiak Radom | 3-0 | Not in squad | — | |||
| Aug 16 | Ekstraklasa | A Lech Poznan | 1-1 | Not in squad | — | |||
| Aug 23 | Ekstraklasa | H Motor Lublin | 2-0 | Not in squad | — | |||
| Aug 30 | Ekstraklasa | A Nieciecza | 3-1 | Not in squad | — | |||
| Sep 13 | Ekstraklasa | H Pogon Szczecin | 1-0 | Not in squad | — | |||
| Sep 20 | Ekstraklasa | A Arka Gdynia | 0-0 | Not in squad | — | |||
| Sep 23 | Cup | A Stal Rzeszów | 1-0 | Not in squad | — | |||
| Sep 27 | Ekstraklasa | H Lechia Gdansk | 3-0 | Not in squad | — | |||
| Oct 5 | Ekstraklasa | A Jagiellonia | 1-3 | Not in squad | — | |||
| Oct 18 | Ekstraklasa | H Gornik Zabrze | 1-1 | Not in squad | — | |||
| Oct 25 | Ekstraklasa | A GKS Katowice | 0-1 | Not in squad | — | |||
| Oct 28 | Cup | A Znicz Pruszków | 3-0 | Not in squad | — | |||
| Oct 31 | Ekstraklasa | A Piast Gliwice | 0-0 | Not in squad | — | |||
| Nov 9 | Ekstraklasa | H Raków Częstochowa | 1-4 | Not in squad | — | |||
| Nov 23 | Ekstraklasa | A Widzew Łódź | 3-1 | Not in squad | — | |||
| Nov 29 | Ekstraklasa | H Cracovia Krakow | 0-1 | Not in squad | — | |||
| Dec 4 | Cup | A Chojniczanka Chojnice | 1-1 | Not in squad | — | |||
| Dec 8 | Ekstraklasa | H Wisla Plock | 1-1 | Not in squad | — | |||
| Feb 1 | Ekstraklasa | A Legia Warszawa | 2-1 | Played | 26 | 6.2 | ||
| Feb 6 | Ekstraklasa | H Zaglebie Lubin | 1-2 | Played | 45 | 6.6 | ||
| Feb 13 | Ekstraklasa | A Radomiak Radom | 2-0 | Unused sub | 0 | — | ||
| Feb 22 | Ekstraklasa | H Lech Poznan | 1-2 | Played | 26 | 6.6 | ||
| Feb 28 | Ekstraklasa | A Motor Lublin | 0-2 | Played | 72 | 6.3 | ||
| Mar 7 | Ekstraklasa | H Nieciecza | 2-1 | Played | 68 | 6.2 | ||
| Mar 16 | Ekstraklasa | A Pogon Szczecin | 1-2 | Played | 73 | 6.5 | ||
| Mar 22 | Ekstraklasa | H Arka Gdynia | 3-0 | Played | 14 | 6.7 | ||
| Apr 6 | Ekstraklasa | A Lechia Gdansk | 2-4 | Played | 23 | 6.7 | ||
| Apr 10 | Ekstraklasa | H Jagiellonia | 1-1 | Played | 13 | 6.9 | ||
| Apr 18 | Ekstraklasa | A Gornik Zabrze | 0-1 | Played | 26 | 6.5 | ||
| Apr 25 | Ekstraklasa | H GKS Katowice | 1-1 | Played | 87 | 7.2 | ||
| May 1 | Ekstraklasa | H Piast Gliwice | 1-1 | Played | 90 | 7.2 | ||
| May 8 | Ekstraklasa | A Raków Częstochowa | 0-2 | Played | 63 | 6.7 | ||
| May 15 | Ekstraklasa | H Widzew Łódź | 1-0 | Unused sub | 0 | — | ||
| May 23 | Ekstraklasa | A Cracovia Krakow | 1-1 | Played | 13 | 6.5 |