[367] Christopher O'Connell 5-7,5-7 Tennys Sandgren [97] 2017-10-03 18:30
Stadium: Court 2 Round: 25
Home History
| Challenger Tiburon Qual | 2017/09/23 20:35 | Smyczek, Tim v Christopher O'Connell | 6-4,5-7,6-2 |
| ITF USA F30 | 2017/09/13 18:50 | Christopher O'Connell v Karue Sell | 4-6,6-7 |
| Challenger Liberec | 2017/07/31 10:55 | Roman Safiullin v Christopher O'Connell | 6-2,6-2 |
| Milan, Italy | 2017/06/27 11:15 | Delbonis, Federico v Christopher O'Connell | 6-3,6-1 |
| Challenger Poprad Tatry | 2017/06/19 09:00 | Christopher O'Connell v Elias Ymer | 4-6,4-6 |
| Lisbon, Portugal | 2017/06/13 11:30 | Christopher O'Connell v Dima, Dragos | 4-6,2-6 |
| Shymkent 2, Kazakhstan | 2017/05/24 05:00 | Christopher O'Connell v Golubev, Andrey | 4-6,2-6 |
| Shymkent 2, Kazakhstan | 2017/05/23 05:00 | Christopher O'Connell v Pedro Martinez | 6-3,7-6 |
Away History
| Challenger Tiburon | 2017/10/01 21:30 | Cameron Norrie v Tennys Sandgren | 6-2,6-3 |
| Challenger Tiburon | 2017/09/30 21:25 | Mackenzie McDonald v Tennys Sandgren | 6-7,6-7 |
| Challenger Tiburon | 2017/09/29 23:55 | Harrison, Christian v Tennys Sandgren | 1-6,2-6 |
| Challenger Tiburon | 2017/09/28 19:55 | Schnur, Brayden v Tennys Sandgren | 1-6,6-7 |
| Challenger Tiburon | 2017/09/27 00:00 | Bangoura, Sekou v Tennys Sandgren | 4-6,4-6 |
| Challenger Cary | 2017/09/14 19:15 | Cameron Norrie v Tennys Sandgren | 6-3,2-6,6-2 |
| Challenger Cary | 2017/09/11 16:00 | Pavic, Ante v Tennys Sandgren | 4-6,4-6 |
| US Open, New York, USA | 2017/08/28 16:35 | Tennys Sandgren v Marin Cilic | 4-6,3-6,6-3,3-6 |