| German Super League 2020 | 2020/05/16 15:00 | Gabriel Clemens v Jens Kniest | 5-0 |
| German Super League 2020 | 2020/05/16 12:30 | Michael Unterbuchner v Jens Kniest | 5-1 |
| German Super League 2020 | 2020/05/16 16:15 | Siepmann, Steffen v Michael Unterbuchner | 5-1 |
| German Super League 2020 | 2020/05/16 14:00 | Bunse, Christian v Siepmann, Steffen | 2-6 |
| UK Open Finals 2020 | 2020/03/06 14:30 | Harry Ward v Siepmann, Steffen | 6-3 |
| UK Open Finals 2020 | 2020/03/06 11:00 | Siepmann, Steffen v Kciuk, Krzysztof | 6-4 |
| European Tour 12 - International Darts Open 2019 | 2019/09/14 18:10 | Jonny Clayton v Siepmann, Steffen | 6-4 |
| European Tour 12 - International Darts Open 2019 | 2019/09/13 19:35 | Andy Boulton v Siepmann, Steffen | 5-6 |
| European Tour 11 - European Darts Matchplay 2019 | 2019/09/06 14:30 | Gabriel Clemens v Siepmann, Steffen | 6-2 |
| European Tour 2 - German Darts Championship 2019 | 2019/03/30 14:20 | Jermaine Wattimena v Siepmann, Steffen | 6-1 |