Stadium: Court 5 Round: 28 Ground: Clay
| ITF - M15 Antalya - Doubles Hommes | 2021/01/09 08:35 | Sijsling / Smits v Deschamps/Savelev | 6-2,7-5 |
| ITF M25 Rodez MD | 2020/10/16 14:30 | Doumbia/Reboul v Sijsling / Smits | 6-3,7-5 |
| ITF M25 Rodez MD | 2020/10/15 16:40 | Arribage T / Broville M v Sijsling / Smits | 6-7,6-7 |
| ITF M25 Rodez MD | 2020/10/14 10:00 | Sijsling / Smits v Added/Eysseric | 6-4,6-2 |
| ITF M25 Rodez MD | 2020/10/13 07:30 | Sijsling / Smits v Virtanen/Wenger | 6-3,6-1 |
| ITF M25 Plaisir MD | 2020/09/16 16:15 | Clezar G / Sakamoto P v Sijsling / Smits | 6-3,7-6 |
| ITF M25 Vogau MD | 2020/08/18 14:25 | Guinard/Haerteis v Sijsling / Smits | 6-2,6-3 |
| Portoroz, Slovénie, Doubles | 2019/08/15 17:50 | Sijsling / Smits v Miedler, Lucas / Weissborn, Tristan-Samuel | 2-6,4-6 |
| ITF - M15 Antalya - Doubles Hommes | 2021/01/09 09:00 | Harris/Sabanin v Bortolotti/Ragazzi | 6-3,3-6,10-6 |
| ITF - M15 Antalya - Doubles Hommes | 2021/01/07 11:40 | Harris/Sabanin v Dimitrov/Snitari | 6-1,6-3 |