| John Isner | Name | Christopher O'Connell |
| USA | Nationality | Australia |
| ATP – | Rank | ATP 127 ▼ 9 |
| 8 | Best | 53 |
| 41 yo | Age | 32 yo |
| 208 cm | Height | 183 cm |
| Right hand / Two handed | Forehand | Right hand / One handed |
| 2007 | Pro since | 2011 |
| 22,430,808$ | Prizemoney | 4,353,212$ |
| 488-312 (61%) | Career W/L | 242-211 (53%) |
| – | 2026 W/L | 16-18 (47%) |
| Form |
