Round: 44 Ground: Hardcourt indoor
| ITF Germany F11 | 2018/08/05 08:00 | Milan Welte v Sizya Ernest Kivanda | 6-0,6-2 |
| ITF Ireland F1 | 2018/08/01 08:30 | Hugo Voljacques v Sizya Ernest Kivanda | 6-1,6-3 |
| ITF Ireland F1 Qual | 2018/07/30 11:15 | Edward Harwood v Sizya Ernest Kivanda | 6-7,3-6 |
| ITF Portugal F11 Qual | 2018/06/30 08:30 | Sizya Ernest Kivanda v Roberts Grinvalds | 2-6,6-7 |
| ITF Spain F13 | 2018/05/26 07:00 | Maximilian Gatev v Sizya Ernest Kivanda | 6-3,4-6,6-7 |
| ITF Bulgaria F1 | 2018/05/12 07:00 | Sizya Ernest Kivanda v Hristo Valeov | 4-6,3-6 |
| ITF Nigeria F3 Qual | 2018/04/28 09:00 | Sizya Ernest Kivanda v Emmanuel Idoko | 6-1,2-6,4-6 |
| ITF Nigeria F2 Qual | 2018/04/21 13:30 | Sizya Ernest Kivanda v Sylvester Emmanuel | 6-7,6-7 |