Najwięcej sezonów w Polsce spędził jednak w barwach bydgoskiej Polonii, startując tam od 1995 do 2001 roku. Na żużlu ściga się również jego syn Simon.
Statystyki Gustafssona w polskiej lidze (za speedway.com.pl)
| Rok | Liga | Zespół | M | B | I | II | III | IV | D | U | W | Pkt | Bon | R | Śr/B |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1992 | 1. liga | Toruń | 2 | 11 | 6 | 2 | 2 | 1 | - | - | - | 24,0 | - | 24,0 | 2,182 |
| 1993 | 1. liga | Wrocław | 1 | 6 | 2 | 2 | 2 | - | - | - | - | 12,0 | - | 12,0 | 2,000 |
| 1994 | 1. liga | Zielona Góra | 3 | 15 | 8 | 3 | 1 | - | 2 | - | 1 | 31,0 | - | 31,0 | 2,067 |
| 1995 | 1. liga | Bydgoszcz | 12 | 64 | 37 | 18 | 5 | 2 | 2 | - | - | 152,0 | 10 | 162,0 | 2,531 |
| 1996 | 1. liga | Bydgoszcz | 16 | 82 | 42 | 24 | 8 | 3 | 2 | 1 | 2 | 182,0 | 11 | 193,0 | 2,383 |
| 1997 | 1. liga | Bydgoszcz | 16 | 77 | 29 | 28 | 15 | 5 | - | - | - | 158,0 | 17 | 175,0 | 2,273 |
| 1998 | 1. liga | Bydgoszcz | 12 | 56 | 18 | 16 | 14 | 6 | 2 | - | - | 100,0 | 15 | 115,0 | 2,054 |
| 1999 | 1. liga | Bydgoszcz | 9 | 47 | 20 | 10 | 11 | 5 | 1 | - | - | 91,0 | 5 | 96,0 | 2,043 |
| 2000 | Ekstraliga | Bydgoszcz | 19 | 97 | 28 | 30 | 23 | 15 | 1 | - | - | 167,0 | 16 | 183,0 | 1,887 |
| 2001 | Ekstraliga | Bydgoszcz | 8 | 36 | 3 | 7 | 16 | 10 | - | - | - | 39,0 | 7 | 46,0 | 1,278 |
| 2002 | Ekstraliga | Gdańsk | 9 | 48 | 17 | 13 | 7 | 7 | 4 | - | - | 84,0 | 7 | 91,0 | 1,896 |
| 2003 | 1. liga | Warszawa | 1 | 3 | - | - | 2 | 1 | - | - | - | 2,0 | - | 2,0 | 0,667 |
| 2008 | 1. liga | Rawicz | 1 | 3 | - | - | 2 | 1 | - | - | - | 2,0 | - | 2,0 | 0,667 |
| 2009 | 2. liga | Łódź | 6 | 19 | 6 | 9 | 1 | - | - | - | 3 | 37,0 | 7 | 44,0 | 2,316 |
| 2010 | 2. liga | Ostrów Wielkopolski | 1 | 4 | - | 1 | 2 | 1 | - | - | - | 4,0 | - | 4,0 | 1,000 |
