[126] Christopher O'Connell 6-2,6-4 Altug Celikbilek [174] 2021-08-25 15:00
Stadium: Court 16 Round: 14 Ground: Hardcourt outdoor
Home History
| Atlanta, USA | 2021/07/31 00:00 | Isner, John v Christopher O'Connell | 7-6,6-7,6-4 |
| Atlanta, USA | 2021/07/29 17:30 | Christopher O'Connell v Jannik Sinner | 7-6,6-4 |
| Atlanta, USA | 2021/07/27 15:00 | Christopher O'Connell v Denis Kudla | 4-6,6-3,6-3 |
| Atlanta, USA | 2021/07/24 14:00 | Christopher O'Connell v Yosuke Watanuki | 7-5,6-4 |
| Hamburg, Germany | 2021/07/11 13:00 | Christopher O'Connell v Alex Molcan | 3-6,7-5,3-6 |
| Hamburg, Germany | 2021/07/10 12:00 | Christopher O'Connell v Gulbis, Ernests | 6-3,6-0 |
| Wimbledon, London, Great Britain | 2021/06/30 12:00 | Christopher O'Connell v Gaël Monfils | 6-4,2-6,6-7,6-4,4-6 |
| Wimbledon, London, Great Britain | 2021/06/24 12:00 | Christopher O'Connell v Tomas Machac | 7-6,6-4,7-6 |
Away History
| Segovia, Spain | 2021/07/30 11:25 | Altug Celikbilek v Nicolas Moreno De Alboran | 4-6,2-6 |
| Segovia, Spain | 2021/07/29 10:00 | Altug Celikbilek v Gabashvili, Teimuraz | 6-3,3-6,6-3 |
| Segovia, Spain | 2021/07/27 13:05 | Altug Celikbilek v Haerteis, Johannes | 6-3,6-4 |
| Challenger Pozoblanco | 2021/07/25 19:00 | Cem Ilkel v Altug Celikbilek | 1-6,7-6,3-6 |
| Challenger Pozoblanco | 2021/07/23 20:25 | Menendez-Maceiras, Adrian v Altug Celikbilek | 3-6,0-6 |
| Challenger Pozoblanco | 2021/07/21 17:10 | Gabashvili, Teimuraz v Altug Celikbilek | 7-5,3-6,4-6 |
| Challenger Pozoblanco | 2021/07/19 17:55 | Skander Mansouri v Altug Celikbilek | 7-6,1-6,6-7 |
| Challenger Porto | 2021/07/04 15:00 | Altug Celikbilek v Quentin Halys | 6-2,6-1 |