| Challenger Bergamo | 10/30 12:20 | 14 | [435] Illya Marchenko v Mate Valkusz [271] | 6-2,6-3 | |
| Challenger Ortisei | 10/23 11:55 | 14 | [446] David Poljak v Illya Marchenko [377] | 7-6,3-6,7-5 | |
| 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 Šymkent | 05/19 05:30 | 27 | [463] Evan Zhu v Illya Marchenko [252] | 6-3,7-6 | |
| Challenger Šymkent | 05/18 06:20 | 26 | [384] Gabriel Decamps v Illya Marchenko [252] | 1-6,1-6 | |
| Challenger Šymkent | 05/17 07:35 | 25 | Saba Purtseladze v Illya Marchenko | 4-6,2-6 | |
| Challenger Šymkent | 05/11 04:00 | 26 | [329] Ergi Kirkin v Illya Marchenko [254] | 5-7,6-1,6-3 | |
| Challenger Šymkent | 05/09 08:05 | 25 | [381] Gabriel Decamps v Illya Marchenko [254] | 3-6,1-6 | |
| Challenger Šymkent | 05/09 04:00 | 25 | Joris De Loore v Illya Marchenko | Cancelled | |
| Challenger Praha | 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 |
Wikipedia - Illja Marčenko
Illja Marčenko ukr. Ілля Марченко / Ill’ja Marčenko (* 8. září 1987, Dniprodzeržynsk (dnes Kamjanske, Ukrajina), tehdy Sovětský svaz) je ukrajinský profesionální tenista. Ve své dosavadní kariéře nevyhrál na okruhu ATP World Tour žádný turnaj. Na turnajích typu Challenger zaznamenal 1 finálové vítězství ve dvouhře. Jeho nejvyšším umístěním na žebříčku ATP ve dvouhře bylo 49. místo (26. září 2016) a ve čtyřhře 268. místo (25. srpen 2014).