| Challenger Vilnius | 10/19 13:20 | 26 | [393] Viktor Durasovic v Illya Marchenko [377] | 5-7,7-6,6-1 | |
| Challenger Vilnius | 10/17 13:00 | 25 | [307] Mirza Basic v Illya Marchenko [377] | 5-7,2-6 | |
| ATP Tel Aviv | 09/25 10:30 | 14 | [142] Vasek Pospisil v Illya Marchenko [312] | 7-6,6-2 | |
| Challenger Istanbul | 09/14 10:15 | 26 | [310] Illya Marchenko v Sebastian Ofner [209] | 1-6,5-7 | |
| Challenger Istanbul | 09/13 07:00 | 25 | [388] Marek Gengel v Illya Marchenko [310] | 5-7,4-6 | |
| Challenger Nonthaburi | 09/01 04:20 | 26 | [307] Illya Marchenko v Omar Jasika [367] | 6-2,3-6,4-6 | |
| Challenger Nonthaburi | 08/29 06:50 | 25 | [307] Illya Marchenko v Yshai Oliel [355] | 6-3,6-2 | |
| Challenger Nonthaburi | 08/24 05:55 | 26 | [328] Nam Hoang Ly v Illya Marchenko [308] | 4-6,6-1,7-5 | |
| Challenger Nonthaburi | 08/22 11:25 | 25 | [433] Jason Jung v Illya Marchenko [308] | 6-7,2-6 | |
| Challenger Grodzisk Mazowiecki | 08/17 08:30 | 26 | [322] Illya Marchenko v Zhizhen Zhang [157] | 6-7,1-6 | |
| Challenger Grodzisk Mazowiecki | 08/16 08:00 | 25 | [303] Ergi Kirkin v Illya Marchenko [322] | 6-7,3-6 | |
| Challenger Segovia | 07/27 13:00 | 26 | [418] Benjamin Lock v Illya Marchenko [306] | 7-6,2-6,6-3 | |
| Challenger Segovia | 07/25 16:00 | 25 | [300] Andrey Kuznetsov v Illya Marchenko [306] | 7-6,1-6,3-6 | |
| Challenger Nur-Sultan | 07/20 07:05 | 26 | [288] Illya Marchenko v Denis Istomin [449] | 4-6,6-7 | |
| Challenger Nur-Sultan | 07/18 12:20 | 25 | [288] Illya Marchenko v Grigoriy Lomakin [205] | 6-3,6-3 | |
| Challenger Porto | 07/04 13:15 | 25 | [203] Kaichi Uchida v Illya Marchenko [277] | 7-6,7-6 | |
| Wimbledon | 06/22 12:35 | 19 | [263] Jason Jung v Illya Marchenko [275] | 7-6,6-2 | |
| Wimbledon | 06/20 11:05 | 14 | [275] Illya Marchenko v Jesper De Jong [216] | 7-5,0-6,6-4 | |
| Challenger Ilkley | 06/12 10:00 | 14 | [247] Illya Marchenko v Rinky Hijikata [239] | 3-6,7-6,6-7 | |
| Challenger Bratislava | 06/07 13:30 | 25 | [247] Illya Marchenko v Filip C Jianu [311] | 7-6,2-6,6-7 | |
| Challenger Shymkent | 05/19 05:30 | 27 | [463] Evan Zhu v Illya Marchenko [252] | 6-3,7-6 | |
| Challenger Shymkent | 05/18 06:20 | 26 | [384] Gabriel Decamps v Illya Marchenko [252] | 1-6,1-6 | |
| Challenger Shymkent | 05/17 07:35 | 25 | Saba Purtseladze v Illya Marchenko | 4-6,2-6 | |
| Challenger Shymkent | 05/11 04:00 | 26 | [329] Ergi Kirkin v Illya Marchenko [254] | 5-7,6-1,6-3 | |
| Challenger Shymkent | 05/09 08:05 | 25 | [381] Gabriel Decamps v Illya Marchenko [254] | 3-6,1-6 | |
| Challenger Shymkent | 05/09 04:00 | 25 | Joris De Loore v Illya Marchenko | Cancelled | |
| Challenger Prague | 05/02 11:00 | 25 | [206] Dimitar Kuzmanov v Illya Marchenko [251] | 6-1,6-3 | |
| Challenger St Brieuc | 03/30 11:20 | 25 | [252] Illya Marchenko v Jack Draper [146] | 3-6,6-7 | |
| Challenger Lille | 03/23 09:30 | 25 | [263] Robin Haase v Illya Marchenko [252] | 7-6,6-7,6-2 | |
| ATP Indian Wells | 03/09 19:00 | 19 | [214] Illya Marchenko v Tomas Machac [158] | 7-5,3-6,3-6 |
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.