| Latvia Int. Qual | 2019/05/30 16:30 | Alexander Svensson v Felix Hammes | W | 0-2 |
| Hellas Int. - Kval | 2019/05/02 15:00 | Muhammet Ozdemir v Felix Hammes | W | 0-2 |
| Swiss Open - Damdubbel - Kval | 2019/01/10 07:00 | Joonas Korhonen v Felix Hammes | L | 2-0 |
| Swiss Open - Damdubbel - Kval | 2018/09/21 07:00 | Dinuka Karunaratna v Felix Hammes | L | 2-0 |
| Swiss Open - Damdubbel - Kval | 2018/09/20 15:10 | Felix Hammes v Mark Brady | W | 2-1 |
| Swiss Open - Damdubbel - Kval | 2018/09/20 08:45 | Robert Cybulski v Felix Hammes | W | 0-2 |
| Giraldilla Int. - Mixed dubbel | 2017/04/12 09:56 | David Jones v Felix Hammes | L | 2-1 |