Face à face
| German Super League 2020 | 2020/05/16 20:05 | Gabriel Clemens v Siepmann, Steffen | 5-3 |
| European Tour 11 - European Darts Matchplay 2019 | 2019/09/06 14:30 | Gabriel Clemens v Siepmann, Steffen | 6-2 |
Home History
| German Super League 2020 | 2020/05/17 18:45 | Gabriel Clemens v Michael Unterbuchner | 5-3 |
| German Super League 2020 | 2020/05/17 16:25 | Gabriel Clemens v Munch, K. | 5-2 |
| German Super League 2020 | 2020/05/17 14:10 | Gabriel Clemens v Bunse, Christian | 5-2 |
| German Super League 2020 | 2020/05/16 20:05 | Gabriel Clemens v Siepmann, Steffen | 5-3 |
| German Super League 2020 | 2020/05/16 17:35 | Gabriel Clemens v Sascha Stein | 5-2 |
| German Super League 2020 | 2020/05/16 15:00 | Gabriel Clemens v Jens Kniest | 5-0 |
| German Super League 2020 | 2020/05/16 12:00 | Gabriel Clemens v Kai Gotthardt | 5-3 |
| PDC Home Tour | 2020/04/23 20:45 | Gabriel Clemens v Carlin, Gavin | 4-5 |
Away History
| German Super League 2020 | 2020/05/17 20:30 | Sascha Stein v Siepmann, Steffen | 5-6 |
| German Super League 2020 | 2020/05/17 17:35 | Kai Gotthardt v Siepmann, Steffen | 5-4 |
| German Super League 2020 | 2020/05/17 14:40 | Munch, K. v Siepmann, Steffen | 5-3 |
| German Super League 2020 | 2020/05/16 20:05 | Gabriel Clemens v Siepmann, Steffen | 5-3 |
| German Super League 2020 | 2020/05/16 18:10 | Jens Kniest v Siepmann, Steffen | 1-6 |
| 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 |