| 1999 Swedish Touring Car Championship |
| 25 Apr 1999 |
Mantorp Park (1) |
Niklas Karlsson |
#23 Alfa Romeo 155 |
DNF |
| 25 Apr 1999 |
Mantorp Park (2) |
Niklas Karlsson |
#23 Alfa Romeo 155 |
19 |
| 15 May 1999 |
Knutstorp (1) |
Niklas Karlsson |
#23 Alfa Romeo 155 |
DNF |
| 15 May 1999 |
Knutstorp (2) |
Niklas Karlsson |
#23 Alfa Romeo 155 |
DNS |
| 30 May 1999 |
Karlskoga (1) |
Niklas Karlsson |
#23 Alfa Romeo 155 |
19 |
| 30 May 1999 |
Karlskoga (2) |
Niklas Karlsson |
#23 Alfa Romeo 155 |
DNF |
| 20 Jun 1999 |
Anderstorp (1) |
Niklas Karlsson |
#23 Alfa Romeo 155 |
15 |
| 20 Jun 1999 |
Anderstorp (2) |
Niklas Karlsson |
#23 Alfa Romeo 155 |
15 |
| 18 Jul 1999 |
Falkenberg (1) |
Niklas Karlsson |
#23 Alfa Romeo 155 |
17 |
| 18 Jul 1999 |
Falkenberg (2) |
Niklas Karlsson |
#23 Alfa Romeo 155 |
DNF |
| 01 Aug 1999 |
Anderstorp (1) |
Niklas Karlsson |
#23 Alfa Romeo 155 |
DNF |
| 01 Aug 1999 |
Anderstorp (2) |
Niklas Karlsson |
#23 Alfa Romeo 155 |
DNF |
| 29 Aug 1999 |
Mantorp Park (1) |
Niklas Karlsson |
#23 Alfa Romeo 155 |
DNF |
| 29 Aug 1999 |
Mantorp Park (2) |
Niklas Karlsson |
#23 Alfa Romeo 155 |
DNF |
| 2000 Swedish Touring Car Championship |
| 07 May 2000 |
Karlskoga (1) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
8 |
| 07 May 2000 |
Karlskoga (2) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
10 |
| 28 May 2000 |
Knutstorp (1) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
14 |
| 28 May 2000 |
Knutstorp (2) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
DNF |
| 01 Jun 2000 |
Mantorp Park (1) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
9 |
| 01 Jun 2000 |
Mantorp Park (2) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
10 |
| 09 Jul 2000 |
Falkenberg (1) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
9 |
| 09 Jul 2000 |
Falkenberg (2) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
DNF |
| 10 Sep 2000 |
Mantorp Park (1) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
11 |
| 10 Sep 2000 |
Mantorp Park (2) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
DNF |
| 2001 Swedish Touring Car Championship |
| 06 May 2001 |
Falkenberg (1) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
DSQ |
| 06 May 2001 |
Falkenberg (2) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
DSQ |
| 20 May 2001 |
Mantorp Park (1) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
11 |
| 20 May 2001 |
Mantorp Park (2) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
10 |
| 04 Jun 2001 |
Karlskoga (1) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
8 |
| 04 Jun 2001 |
Karlskoga (2) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
9 |
| 10 Jun 2001 |
Jyllandsringen (1) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
14 |
| 10 Jun 2001 |
Jyllandsringen (2) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
12 |
| 08 Jul 2001 |
Falkenberg (1) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
8 |
| 08 Jul 2001 |
Falkenberg (2) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
DNS |
| 22 Jul 2001 |
Knutstorp (1) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
13 |
| 22 Jul 2001 |
Knutstorp (2) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
DNF |
| 05 Aug 2001 |
Mo I Rana (1) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
9 |
| 05 Aug 2001 |
Mo I Rana (2) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
DNF |
| 19 Aug 2001 |
Karlskoga (1) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
6 |
| 19 Aug 2001 |
Karlskoga (2) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
DNF |
| 02 Sep 2001 |
Knutstorp (1) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
DNF |
| 02 Sep 2001 |
Knutstorp (2) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
DNF |
| 16 Sep 2001 |
Mantorp Park (1) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
NC |
| 16 Sep 2001 |
Mantorp Park (2) |
Niklas Karlsson |
#14 Alfa Romeo 156 TS |
15 |