| Belgian Int. Qual | 2019/09/11 09:40 | Robert Mann v Jeppe Bruun Christensen | L | 0-2 |
| Azerbaijan Int. Qual | 2019/06/06 05:30 | Robert Mann v Brian Yang | L | 0-2 |
| Slovenia Int. Qual | 2019/05/15 09:30 | Alap Mishra v Robert Mann | L | 2-0 |
| Giraldilla Int. XD | 2019/03/14 14:00 | Robert Mann v Daniel Valdes Perez | W | 2-0 |
| Jamaica Int. | 2019/03/07 15:30 | Nicholas Robert Henson Waller v Robert Mann | L | 2-0 |
| Giraldilla Int. XD | 2018/11/21 18:40 | Lucas Claerbout v Robert Mann | L | 2-0 |
| Giraldilla Int. XD | 2018/10/30 19:30 | Luis Enrique Penalver v Robert Mann | L | 2-0 |
| Dutch Open | 2018/10/09 16:55 | June Wei Cheam v Robert Mann | L | 2-0 |