Stadium: Court 4 Round: 27 Ground: Hardcourt outdoor
| ITF - M15 Sharm El Sheikh - Doubles Hommes | 2019/03/26 10:10 | Ayap S / Samaha G v Kiyamov T / Struvay E | 1-6,4-6 |
| ITF - M15 Sharm El Sheikh - Doubles Hommes | 2019/03/23 09:30 | Dev/Kalyanpur v Sijsling I / van de Zandschulp B | 6-7,6-2,6-10 |
| ITF - M15 Sharm El Sheikh - Doubles Hommes | 2019/03/22 10:40 | Goveas A / Samaha G v Sijsling I / van de Zandschulp B | 6-2,4-6,7-10 |
| ITF - M15 Sharm El Sheikh - Doubles Hommes | 2019/03/21 12:35 | Fortuna C / Maiga R v Sijsling I / van de Zandschulp B | 6-4,2-6,4-10 |
| Kaarst, Doubles M-ITF-GER-02B | 2019/02/09 15:10 | Sijsling I / van de Zandschulp B v Rosenkranz M / Whitehouse M | 6-4,6-4 |
| Kaarst, Doubles M-ITF-GER-02B | 2019/02/08 15:00 | Gengel M / Nouza P v Sijsling I / van de Zandschulp B | 4-6,2-6 |
| Kaarst, Doubles M-ITF-GER-02B | 2019/02/07 19:55 | Sijsling I / van de Zandschulp B v Kowalczyk M / Matuszewski P | 6-3,6-2 |
| ITF France F5 MD | 2018/03/12 16:40 | Delage P / Dussin L v Sijsling I / van de Zandschulp B | 4-6,6-0,7-10 |
| ITF France F4 MD | 2018/03/09 17:00 | Added D / Olivetti A v Sijsling I / van de Zandschulp B | 6-3,7-5 |