| 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 | |
| Challenger - Bratislava | 10/08 13:10 | 14 | [271] Illya Marchenko v Evgeny Karlovskiy [474] | 6-2,7-6 | |
| Challenger - Mouilleron le Captif | 10/03 13:40 | 25 | [271] Illya Marchenko v Benjamin Bonzi [98] | 6-7,6-7 | |
| Challenger - Columbus | 09/18 22:40 | 25 | [197] Tennys Sandgren v Illya Marchenko [272] | 6-2,6-1 | |
| Challenger - Cary | 09/13 18:40 | 26 | [472] Toby Samuel v Illya Marchenko [273] | 7-5,6-7,6-1 | |
| Challenger - Cary | 09/11 21:30 | 25 | [273] Illya Marchenko v Enzo Couacaud [178] | 6-4,7-6 | |
| ATP - Winston-Salem | 08/21 19:25 | 24 | [267] Illya Marchenko v Rinky Hijikata [111] | 6-4,3-6,2-6 | |
| ATP - Winston-Salem | 08/20 17:00 | 19 | [264] Illya Marchenko v Omni Kumar [383] | 6-4,6-4 | |
| ATP - Winston-Salem | 08/19 15:00 | 14 | Illya Marchenko v Filippo Moroni | 6-3,6-4 | |
| Challenger - Salinas | 07/29 16:00 | 29 | Matija Pecotic v Illya Marchenko | 4-6,4-6 | |
| Challenger - Salinas | 07/28 18:10 | 28 | [222] Giovanni M Perricard v Illya Marchenko [328] | 6-7,4-6 | |
| Challenger - Salinas | 07/27 15:00 | 27 | [328] Illya Marchenko v Rio Noguchi [231] | 6-3,3-6,7-6 | |
| Challenger - Salinas | 07/26 17:05 | 26 | [253] Evgeny Donskoy v Illya Marchenko [328] | 5-7,5-7 | |
| Challenger - Salinas | 07/24 18:40 | 25 | [398] Omni Kumar v Illya Marchenko [328] | 6-3,3-6,4-6 | |
| ATP - Newport | 07/17 17:25 | 19 | [252] Li Tu v Illya Marchenko [320] | 6-3,6-2 | |
| ATP - Newport | 07/16 16:00 | 14 | Donald Young v Illya Marchenko | 1-6,3-6 | |
| Challenger - Chicago | 07/13 15:00 | 26 | [338] Illya Marchenko v Juncheng Shang [155] | 5-7,3-6 | |
| Challenger - Chicago | 07/11 16:40 | 25 | [232] Dane Sweeny v Illya Marchenko [338] | 4-6,4-6 | |
| Challenger - Chicago | 07/10 15:00 | 19 | Cannon Kingsley v Illya Marchenko | 6-7,1-6 | |
| Challenger - Chicago | 07/09 19:30 | 14 | [500] Jaimee Floyd Angele v Illya Marchenko [338] | 6-7,4-6 | |
| Challenger - Bratislava | 06/15 10:30 | 26 | [266] Vitaliy Sachko v Illya Marchenko [345] | 7-5,6-1 | |
| Challenger - Bratislava | 06/13 15:00 | 25 | [293] Dino Prizmic v Illya Marchenko [345] | 2-6,4-6 | |
| Challenger - Bratislava | 06/12 13:45 | 19 | [420] Daniel Dutra Da Silva v Illya Marchenko [345] | 4-6,6-7 | |
| Challenger - Bratislava | 06/12 10:10 | 45 | Blaz Rola v Illya Marchenko | 6-4,5-7,3-6 | |
| Challenger - Prostejov | 06/05 10:50 | 19 | [251] Roman A Burruchaga v Illya Marchenko [356] | 3-6,6-4,6-4 | |
| Challenger - Prostejov | 06/04 11:00 | 14 | [405] Martin Damm v Illya Marchenko [356] | 4-6,3-6 | |
| ATP - Geneva | 05/20 13:50 | 14 | [321] Illya Marchenko v Vitaliy Sachko [282] | 5-7,2-6 | |
| Challenger - Mauthausen | 05/08 08:00 | 19 | [324] Illya Marchenko v Lucas Gerch [334] | Retired |
Wikipedia - Illya Marchenko
Illya Vasylovych Marchenko (Ukrainian: Ілля Васильович Марченко) (born 8 September 1987) is a Ukrainian professional tennis player. He has a career high in singles of World No. 49 achieved on 26 September 2016 and of No. 268 in doubles achieved on 25 August 2014. On the ATP Tour, Marchenko reached the semifinals of Moscow in 2009, the 2010 St. Petersburg Open and Doha in 2016.
He is noted for his backhand, which he cites as his best shot. His favorite surface is hard courts.