| Belgian Int. Qual | 2019/09/11 15:15 | Joel Koenig v B.M. Rahul Bharadwaj | L | 0-2 |
| Belarus Int. | 2019/08/31 09:40 | Joel Koenig v Kartikey Gulshan Kumar | L | 0-2 |
| Hellas Open | 2019/08/09 06:30 | Adrian Dziolko v Joel Koenig | L | 2-0 |
| Peru Future Series | 2019/05/10 21:00 | Joel Koenig v La Torre Regal, Daniel | L | 0-2 |
| Dutch Int. - Qualif. | 2019/04/11 14:20 | Bruno Carvalho v Joel Koenig | L | 2-1 |
| Open de Suisse - Doubles Femmes - Qualif. | 2019/01/17 11:00 | Ditlev Jaeger Holm v Joel Koenig | L | 2-0 |
| Open de Suisse - Doubles Femmes - Qualif. | 2018/11/21 11:43 | Lane, Alex v Joel Koenig | L | 2-0 |
| Open de Suisse - Doubles Femmes - Qualif. | 2018/11/21 09:54 | Joel Koenig v Pringle, Ciar | W | 2-0 |
| European Club Championships | 2019/07/04 12:00 | Malkov, Vladimir v Bernardo Atilano | L | 2-0 |
| European Club Championships | 2019/07/02 13:00 | Zevl, Lukas v Bernardo Atilano | W | 0-2 |
| Spanish Int. Qual | 2019/06/12 11:30 | Karan Rajan Rajarajan v Bernardo Atilano | L | 2-1 |
| Slovenia Int. | 2019/05/16 09:30 | Bernardo Atilano v Lane, Alex | L | 0-2 |
| Brazil Int. | 2019/05/02 13:45 | Bernardo Atilano v Maddaloni, Rosario | L | 1-2 |
| Dutch Int. - | 2019/04/12 08:00 | Kirchmayr, Christian v Bernardo Atilano | L | 2-1 |
| Finnish Open Qual | 2019/04/04 13:50 | Karpov, Georgii v Bernardo Atilano | L | 2-1 |
| Finnish Open Qual | 2019/04/04 09:10 | Lee, Yen-Yu v Bernardo Atilano | W | 0-2 |