[171] Quentin Halys 3-6,6-2,6-2 Illya Marchenko [155] 2021-09-16 08:00
Stadium: Court 9 Round: 26 Ground: Hardcourt outdoor
Head to Head
| Challenger - Cherbourg | 2020/02/12 12:30 | Illya Marchenko v Quentin Halys | 3-6,7-6,6-7 |
| ATP - Montpellier | 2017/02/07 11:00 | Illya Marchenko v Quentin Halys | 6-4,6-4 |
Home History
| Challenger - Istanbul | 2021/09/14 07:00 | Bernard Tomic v Quentin Halys | 0-6,1-6 |
| Challenger - Kyjev | 2021/09/06 09:35 | Nuno Borges v Quentin Halys | 6-3,7-5 |
| US Open | 2021/08/30 22:10 | Dominik Koepfer v Quentin Halys | 6-4,3-6,4-6,6-3,6-4 |
| US Open | 2021/08/27 19:20 | Quentin Halys v Ernests Gulbis | 6-4,7-5 |
| US Open | 2021/08/26 23:00 | Kacper Zuk v Quentin Halys | 6-7,4-6 |
| US Open | 2021/08/25 17:45 | Quentin Halys v Samir Banerjee | 6-1,6-0 |
| Challenger - San Marino | 2021/08/10 15:30 | Salvatore Caruso v Quentin Halys | 3-6,6-2,6-2 |
| Challenger - Cordenons | 2021/08/03 12:50 | Quentin Halys v Thiago Agustin Tirante | 4-6,6-7 |
Away History
| Challenger - Istanbul | 2021/09/14 09:35 | Thomas Fabbiano v Illya Marchenko | 5-7,2-6 |
| US Open | 2021/08/26 15:00 | Jiri Lehecka v Illya Marchenko | 4-6,7-6,6-4 |
| US Open | 2021/08/24 17:05 | Tobias Kamke v Illya Marchenko | 6-3,6-7,2-6 |
| ATP - Toronto | 2021/08/07 15:00 | Illya Marchenko v James Duckworth | 1-6,3-6 |
| ATP - Washington | 2021/08/02 19:50 | Marcos Giron v Illya Marchenko | 4-6,6-4,7-6 |
| ATP - Washington | 2021/08/01 21:30 | Maxime Cressy v Illya Marchenko | 5-7,7-6,3-6 |
| ATP - Washington | 2021/07/31 20:45 | Ivo Karlovič v Illya Marchenko | 3-6,7-6,3-6 |
| ATP - Atlanta | 2021/07/24 17:50 | James Ward v Illya Marchenko | 6-3,7-6 |