| Challenger - Gwangju | 04/16 05:10 | 25 | [239] Illya Marchenko v Seongchan Hong [172] | 3-6,2-6 | |
| Challenger - Busan | 04/12 02:00 | 27 | [107] James Duckworth v Illya Marchenko [256] | 7-6,3-6,6-3 | |
| Challenger - Busan | 04/10 04:20 | 26 | [256] Illya Marchenko v Rio Noguchi [343] | 6-2,6-3 | |
| Challenger - Busan | 04/08 04:00 | 25 | [252] Illya Marchenko v Alex Bolt [247] | 6-1,7-6 | |
| Challenger - Hambourg | 03/13 09:30 | 25 | [322] Ergi Kirkin v Illya Marchenko [228] | 4-6,6-3,6-4 | |
| Challenger - Lugano | 03/04 09:00 | 19 | [226] Illya Marchenko v Cem Ilkel [318] | 6-7,6-7 | |
| Challenger - Lugano | 03/03 11:20 | 14 | Illya Marchenko v Yannik Steinegger | 6-2,3-6,6-2 | |
| ATP - Delray Beach | 02/10 15:00 | 14 | [71] Flavio Cobolli v Illya Marchenko [234] | 6-4,6-2 | |
| ATP - Dallas | 02/05 18:00 | 19 | [281] Tennys Sandgren v Illya Marchenko [234] | 7-5,7-6 | |
| ATP - Dallas | 02/04 17:00 | 14 | Brandon Holt v Illya Marchenko | 6-7,7-6,6-7 | |
| Challenger - Koblenz | 01/31 12:05 | 25 | [332] David Jorda Sanchis v Illya Marchenko [228] | 6-4,3-6,6-1 | |
| Challenger - Koblenz | 01/31 12:05 | 25 | [207] Francesco Passaro v Illya Marchenko [228] | Cancelled | |
| Open d'Australie | 01/09 03:50 | 14 | [218] Illya Marchenko v Nerman Fatic [210] | 4-6,6-7 | |
| Challenger Noumea | 01/01 08:45 | 25 | [76] Richard Gasquet v Illya Marchenko [220] | 7-6,6-2 | |
| Sofia, Bulgaria | 11/05 15:50 | 19 | [137] Terence Atmane v Illya Marchenko [210] | 7-6,7-5 | |
| Sofia, Bulgaria | 11/04 13:30 | 14 | [274] Lorenzo Giustino v Illya Marchenko [210] | 6-7,7-6,3-6 | |
| Bergamo, Italy | 10/31 18:30 | 25 | [258] Cem Ilkel v Illya Marchenko [210] | 6-7,6-4,7-5 | |
| Bergamo, Italy | 10/30 10:35 | 19 | [210] Illya Marchenko v Kenny de Schepper [474] | 6-4,7-5 | |
| Bergamo, Italy | 10/29 12:10 | 14 | Illya Marchenko v Leonardo Borrelli | 6-2,7-6 | |
| Challenger Ortisei | 10/26 11:20 | 26 | Illya Marchenko v Luca Giacomini | 6-4,2-6,6-7 | |
| Challenger Ortisei | 10/25 08:00 | 25 | [212] Illya Marchenko v Lorenzo Rottoli [433] | 6-4,6-4 | |
| Challenger - Hambourg | 10/22 09:30 | 29 | [176] Dennis Novak v Illya Marchenko [248] | 2-6,3-6 | |
| Challenger - Hambourg | 10/21 10:00 | 28 | [262] Billy Harris v Illya Marchenko [248] | 5-7,6-3,5-7 | |
| Challenger - Hambourg | 10/20 09:00 | 27 | [248] Illya Marchenko v Adam Walton [177] | 6-4,6-1 | |
| Challenger - Hambourg | 10/18 11:25 | 26 | [248] Illya Marchenko v Altug Celikbilek [295] | 6-4,3-6,7-6 | |
| Challenger - Hambourg | 10/17 08:00 | 25 | [244] Oleksii Krutykh v Illya Marchenko [248] | 2-6,3-6 | |
| Challenger Bratislava | 10/13 12:30 | 27 | [188] Joris De Loore v Illya Marchenko [271] | 6-3,3-6,7-6 | |
| Challenger Bratislava | 10/12 14:00 | 26 | [271] Illya Marchenko v Norbert Gombos [289] | 4-6,6-3,7-5 | |
| Challenger Bratislava | 10/10 12:15 | 25 | [196] Dennis Novak v Illya Marchenko [271] | 6-7,0-6 | |
| Challenger Bratislava | 10/09 11:20 | 19 | [271] Illya Marchenko v Kacper Zuk [301] | 7-5,7-5 |
Wikipedia - Illya Marchenko
Illya Marchenko, né le à Dniprodzerjynsk, est un joueur de tennis ukrainien, professionnel depuis 2006.