| ITF M15 Sozopol | 05/07 09:00 | 54 | Sizya Ernest Kivanda v Llewelyn Bevan | 6-7,6-4,7-10 | |
| ITF M15 Sozopol | 05/06 07:00 | 54 | Sizya Ernest Kivanda v Radoslav Shandarov | 6-3,2-6,10-6 | |
| ITF M25 Sunderland | 04/08 09:40 | 54 | Robert Carter v Sizya Ernest Kivanda | 6-4,7-5 | |
| ITF M25 Bakersfield | 03/11 17:00 | 45 | Abraham Asaba v Sizya Ernest Kivanda | 6-3,6-4 | |
| ITF M25 Oberentfelden | 02/04 08:30 | 45 | Sizya Ernest Kivanda v Jakob Aichhorn | 5-7,5-7 | |
| ITF M15 Veigy-Foncenex | 01/21 13:30 | 45 | Sizya Ernest Kivanda v Jean Thirouin | 3-6,7-6,5-10 | |
| ITF Finlandia F4 | 11/10 11:25 | 54 | Johannes Seeman v Sizya Ernest Kivanda | 3-6,6-3,6-3 | |
| ITF Alemania F16 | 10/22 11:30 | 44 | Roy Sarut De Valk v Sizya Ernest Kivanda | 6-4,6-3 | |
| ITF Alemania F16 | 10/21 08:00 | 44 | Sizya Ernest Kivanda v Amadatus Admiraal | 6-3,6-3 | |
| ITF Alemania F16 | 10/21 08:00 | 44 | Sizya Ernest Kivanda v Niklas Guttau | 7-5,6-4 | |
| ITF Francia F22 | 10/15 13:55 | 54 | Benjamin Pietri v Sizya Ernest Kivanda | 6-2,6-3 | |
| ITF Francia F22 | 10/14 12:35 | 54 | Clement Chidekh v Sizya Ernest Kivanda | 1-6,5-7 | |
| ITF Suecia F5 | 10/01 12:00 | 25 | Sizya Ernest Kivanda v Linus Frost | 6-7,2-6 | |
| ITF Suecia F5 | 09/30 08:00 | 54 | Sizya Ernest Kivanda v Jakob Arvidsson Ehn | 7-5,6-1 | |
| ITF Suecia F5 | 09/29 08:00 | 54 | Linh Giang Trinh v Sizya Ernest Kivanda | 2-6,3-6 | |
| ITF Gran Bretaña F6 | 09/26 11:55 | 26 | George Houghton v Sizya Ernest Kivanda | 6-1,6-2 | |
| ITF Gran Bretaña F6 | 09/25 12:50 | 25 | Sizya Ernest Kivanda v Finn Bass | 3-6,7-6,6-4 | |
| ITF Gran Bretaña F6 | 09/24 09:30 | 44 | Sizya Ernest Kivanda v George Foster | 6-1,7-5 | |
| ITF Gran Bretaña F6 | 09/23 11:30 | 44 | Sizya Ernest Kivanda v Matthew Hingley | 6-3,6-1 | |
| ITF Gran Bretaña F5 | 09/16 09:30 | 54 | Sizya Ernest Kivanda v Robert Carter | 4-6,3-6 | |
| ITF Gran Bretaña F4 | 09/09 11:30 | 44 | Constantin Schmitz v Sizya Ernest Kivanda | 6-1,7-5 | |
| ITF Gran Bretaña F4 | 09/09 09:00 | 44 | Sizya Ernest Kivanda v Deji Thomas-Smith | 4-6,6-2,6-2 | |
| ITF Alemania F11 | 08/05 08:00 | 62 | Milan Welte v Sizya Ernest Kivanda | 6-0,6-2 | |
| ITF Irlanda F1 | 08/01 08:30 | 25 | Hugo Voljacques v Sizya Ernest Kivanda | 6-1,6-3 | |
| ITF Irlanda F1 - Clasificación | 07/30 11:15 | 54 | Edward Harwood v Sizya Ernest Kivanda | 6-7,3-6 | |
| ITF Portugal F11 - Clasificación | 06/30 08:30 | 62 | Sizya Ernest Kivanda v Roberts Grinvalds | 2-6,6-7 | |
| ITF España F13 | 05/28 08:00 | 62 | Andres F Canovas v Sizya Ernest Kivanda | Retired | |
| ITF España F13 | 05/26 07:00 | 62 | Maximilian Gatev v Sizya Ernest Kivanda | 6-3,4-6,6-7 | |
| ITF Bulgaria F1 | 05/12 07:00 | 44 | Sizya Ernest Kivanda v Hristo Valeov | 4-6,3-6 | |
| ITF Nigeria F3 - Clasificación | 04/28 09:00 | 54 | Sizya Ernest Kivanda v Emmanuel Idoko | 6-1,2-6,4-6 |