Stadium: M.A.R.A - Court Round: 27
| ITF M15 Kaarst | 2019/02/07 13:10 | Igor Sijsling v Mick Veldheer | 6-2,6-2 |
| ITF M15 Kaarst | 2019/02/05 17:30 | Igor Sijsling v Bastien Presuhn | 6-3,6-2 |
| Challenger Eckental | 2018/10/31 17:00 | Evgeny Donskoy v Igor Sijsling | 6-1,6-1 |
| Challenger Eckental | 2018/10/29 10:00 | Alexander Bublik v Igor Sijsling | 3-6,0-6 |
| Challenger Eckental | 2018/10/28 10:00 | Igor Sijsling v Tobias Simon | 3-6,7-6,6-2 |
| Challenger Eckental | 2018/10/27 07:30 | Igor Sijsling v Lukas Klein | 7-6,6-3 |
| Challenger Como | 2018/08/25 12:10 | Igor Sijsling v Facundo Arguello | 5-7,1-6 |
| Challenger Lexington | 2018/07/31 17:55 | Ronnie Schneider v Igor Sijsling | 6-2,6-4 |
| ITF M15 Kaarst | 2019/02/07 11:00 | Henri Squire v Lucas Gerch | 6-7,5-7 |
| ITF M15 Kaarst | 2019/02/06 17:30 | Martin Van Der Meerschen v Lucas Gerch | 2-6,5-7 |
| ITF M25 Nussloch | 2019/01/24 15:10 | Lucas Gerch v Tim Van Rijthoven | 6-7,4-6 |
| ITF M25 Nussloch | 2019/01/23 11:25 | Lucas Gerch v Lenny Hampel | 6-1,6-3 |
| ITF Qatar F6 | 2018/12/17 12:05 | Lucas Gerch v Aslan Karatsev | 1-6,0-6 |
| ITF Qatar F5 | 2018/12/11 17:05 | Lucas Gerch v Richard Muzaev | 2-6,4-6 |
| ITF Qatar F5 | 2018/12/10 14:00 | Lucas Gerch v Guy Den Heijer | 6-2,3-6,4-6 |
| ITF Qatar F5 | 2018/12/09 14:50 | Lucas Gerch v Aliaksandr Prudnikau | 6-1,7-5 |