Jan Seyffarth
Jan Seyffarth is a German racing driver. He has competed in such series as the FIA GT3 European Championship, Rolex Sports Car Series and Porsche Supercup.Complete Porsche Supercup results
| Year | Team | Car | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | DC | Points |
| 2005 | UPS Porsche Junior Team | Porsche 997 GT3 | ITA | ESP
12 | MON | GER | USA | USA | FRA | GBR
9 | GER
3 | HUN
9 | ITA
9 | BEL | | NC | 0‡ |
| 2006 | UPS Porsche Junior Team | Porsche 997 GT3 | BHR
9 | ITA | GER | ESP
5 | MON
12 | GBR
12 | USA | USA | FRA | GER
12 | HUN
Ret | ITA
7 | | NC | 0‡ |
| 2008 | Konrad Motorsport | Porsche 997 GT3 | BHR
3 | BHR
5 | ESP
1 | TUR
2 | MON
8 | FRA
7 | GBR
Ret | GER
17 | HUN
16 | | | | | 8th | 93 |
| 2008 | Tolimit Motorsport | Porsche 997 GT3 | | | | | | | | | | ESP
16 | BEL
10 | ITA
29† | | 8th | 93 |
| 2009 | Tolimit Motorsport | Porsche 997 GT3 | BHR | BHR | ESP | MON | TUR | GBR | GER
7 | HUN
2 | ESP | BEL
3 | ITA | UAE | UAE | NC | 0‡ |
| 2010 | Veltins MRS Racing | Porsche 997 GT3 | BHR
3 | BHR
11 | ESP
6 | MON
18 | ESP
11 | GBR
9 | GER
2 | HUN
8 | BEL
4 | ITA
5 | | | | 5th | 97 |
† — Did not finish the race, but was classified as he completed over 90% of the race distance.
‡ Guest Driver — Ineligible for points
