Round: 44 Ground: Hardcourt outdoor
| ITF M15 Cancun | 2019/10/13 18:30 | Hernandez Ramirez, Sergio Luis v Bierman, Rikhardt | 6-4,6-1 |
| Pretoria, Singles M-ITF-RSA-02A | 2019/10/01 07:30 | Sibanda, Mehluli Don Ayanda v Bierman, Rikhardt | 6-4,6-4 |
| Johannesburg, Singles M-ITF-RSA-01A | 2019/09/25 13:45 | Arthur Cazaux v Bierman, Rikhardt | 6-2,7-5 |
| Kiryat Shmona, Singles M-ITF-ISR-04A | 2019/08/28 11:00 | Deviatiarov, Marat v Bierman, Rikhardt | 6-3,6-1 |
| Kiryat Shmona, Singles M-ITF-ISR-04A | 2019/08/26 11:30 | Benya, Roee v Bierman, Rikhardt | 3-6,3-6 |
| ITF M15 Sintra | 2019/08/13 13:30 | Bierman, Rikhardt v Cabral, Francisco | 0-6,6-2,2-6 |
| ITF M15 Sintra | 2019/08/13 09:00 | Rodrigues, Pedro Gabriel v Bierman, Rikhardt | 7-5,6-7,10-5 |
| ITF M15 Sintra | 2019/08/12 09:00 | Brancal, Ricardo v Bierman, Rikhardt | 0-6,3-6 |