| ATP - Washington | 08/02 19:50 | 24 | [64] Marcos Giron v Illya Marchenko [157] | 4-6,6-4,7-6 | |
| ATP - Washington | 08/01 21:30 | 19 | [153] Maxime Cressy v Illya Marchenko [158] | 5-7,7-6,3-6 | |
| ATP - Washington | 07/31 20:45 | 14 | [203] Ivo Karlovic v Illya Marchenko [158] | 3-6,7-6,3-6 | |
| ATP - Atlanta | 07/24 17:50 | 26 | [354] James Ward v Illya Marchenko [161] | 6-3,7-6 | |
| ATP - Los Cabos | 07/22 04:50 | 26 | [37] Taylor Fritz v Illya Marchenko [161] | 6-1,6-7,7-5 | |
| ATP - Los Cabos | 07/21 00:00 | 25 | [129] Peter Gojowczyk v Illya Marchenko [161] | 3-6,2-6 | |
| ATP - Newport | 07/12 20:15 | 25 | [156] Illya Marchenko v Kevin Anderson [113] | 5-7,3-6 | |
| Wimbledon | 06/23 15:00 | 19 | Mackenzie McDonald v Illya Marchenko | 6-1,3-6,6-4 | |
| Wimbledon | 06/22 11:35 | 14 | [215] Lorenzo Giustino v Illya Marchenko [155] | 5-7,6-7 | |
| ATP - Queens | 06/14 15:45 | 25 | [64] Feliciano Lopez v Illya Marchenko [155] | 6-1,7-6 | |
| ATP - Queens | 06/13 10:00 | 19 | [329] James Ward v Illya Marchenko [161] | 4-6,6-7 | |
| ATP - Queens | 06/12 11:35 | 14 | [201] Ruben Bemelmans v Illya Marchenko [161] | 3-6,6-1,2-6 |