| Bulgarian Int. | 2019/10/04 07:00 | Joonas Korhonen v Julien Scheiwiller | W | 2-0 |
| Polish Int. | 2019/09/20 10:20 | Leon Seiwald v Joonas Korhonen | L | 2-1 |
| Lithuanian Int. | 2019/06/07 11:15 | Joonas Korhonen v Jan Louda | L | 1-2 |
| Latvia Int. | 2019/05/31 14:00 | Joonas Korhonen v Richard Kuhl | W | 2-0 |
| Croatian Int. | 2019/04/19 08:30 | Joonas Korhonen v Bundgaard, Martin | L | 0-2 |
| Finnish Open Qual | 2019/04/04 07:45 | Joonas Korhonen v Manota, Abhinav | W | 2-0 |
| Open de Suisse - Doubles Femmes - Qualif. | 2019/03/07 10:30 | Alvaro Vazquez v Joonas Korhonen | L | 2-0 |
| Open de Suisse - Doubles Femmes - Qualif. | 2019/01/17 16:30 | Joonas Korhonen v Hurskainen, Henri | L | 1-2 |
| Bulgarian Int. Qual | 2019/10/03 11:00 | Yildiz, Yusuf v Giovanni Toti | W | 0-2 |
| Croatian Int. Qual | 2019/04/18 18:30 | Giovanni Toti v Resch, Lukas | L | 0-2 |
| Croatian Int. Qual | 2019/04/18 14:30 | Stoynov, Ilyan v Giovanni Toti | W | 1-2 |
| Croatian Int. Qual | 2019/04/18 13:00 | Daniel Johannesson v Giovanni Toti | W | 1-2 |
| Giraldilla Int. XD | 2018/03/09 13:00 | Luka Wraber v Giovanni Toti | L | 2-0 |
| Giraldilla Int. XD | 2018/03/08 14:45 | Giovanni Toti v Kevin Barkman | W | 2-0 |
| Open de Suisse - Doubles Femmes - Qualif. | 2017/12/14 12:30 | Zavadsky, Dmytro v Giovanni Toti | L | 2-0 |