Stadium: Court 7 Round: 25 Ground: Synthetic outdoor
| Challenger Amersfoort | 2019/07/20 15:30 | Mats Moraing v Igor Sijsling | 6-4,6-3 |
| Challenger Amersfoort | 2019/07/19 16:00 | Igor Sijsling v Daniel Gimeno-Traver | 6-3,7-5 |
| Challenger Amersfoort | 2019/07/18 13:20 | Sebastian Fanselow v Igor Sijsling | 5-7,3-6 |
| Challenger Amersfoort | 2019/07/17 13:35 | Igor Sijsling v Johan Sebastien Tatlot | 6-3,7-5 |
| Challenger Amersfoort | 2019/07/16 08:00 | Julian Lenz v Igor Sijsling | 4-6,1-6 |
| Challenger Amersfoort | 2019/07/15 08:00 | Igor Sijsling v Sergio Martos Gornes | 6-1,6-1 |
| ITF M15 Den Haag | 2019/07/06 12:10 | Igor Sijsling v Matias Zukas | 6-7,6-1,3-6 |
| ITF M15 Den Haag | 2019/07/05 15:00 | Manuel Guinard v Igor Sijsling | 0-6,2-6 |
| ITF M15 Harare | 2019/06/26 08:35 | Niklas Johansson v Benjamin Lock | 3-6,4-6 |
| ITF M15 Harare | 2019/06/20 09:00 | Niklas Johansson v Guy Orly Iradukunda | 2-6,0-6 |
| ITF M15 Akishima | 2019/06/11 07:25 | Niklas Johansson v Hikaru Shiraishi | 4-6,4-6 |
| ITF M15 Guam | 2019/06/06 01:45 | Niklas Johansson v Hugo Pontico | 1-6,2-6 |
| ITF M15 Guam | 2019/06/05 02:35 | Jesse Delaney v Niklas Johansson | 4-6,6-2,5-7 |
| ITF M15 Kampala | 2019/05/09 06:00 | Niklas Johansson v Guy Orly Iradukunda | 3-6,3-6 |
| ITF M15 Kampala | 2019/05/07 08:30 | Niklas Johansson v Kevin Cheruiyot | 6-2,6-1 |
| ITF M15 Accra | 2019/05/02 09:00 | Niklas Johansson v Andre Gaspar Murta | 6-4,1-6,6-7 |