Stadium: Center Court Round: 25 Ground: Hardcourt outdoor
| Coupe Davis | 2017/07/19 14:00 | Benjamin Lock v Ubon, Joseph Imeh | 6-4,6-2 |
| ITF Zimbabwe F2 Qual | 2018/06/04 08:00 | Ubon, Joseph Imeh v Perez Bacigalupo, Gonzalo Tomas | 6-3,6-4 |
| ITF Zimbabwe F1 | 2018/05/28 08:00 | Vazirani, Kunal v Ubon, Joseph Imeh | 2-6,3-6 |
| ITF Uganda F4 | 2018/05/22 06:00 | Ubon, Joseph Imeh v Aguma, Boris | 2-6,3-6 |
| ITF Uganda F4 Qual | 2018/05/20 07:00 | Ubon, Joseph Imeh v Ku Meza, Andre | 7-5,6-1 |
| ITF Nigeria F3 | 2018/05/01 12:35 | Ubon, Joseph Imeh v Martinez, Mirko | 1-6,1-6 |
| ITF Nigeria F3 Qual | 2018/04/29 12:50 | Ubon, Joseph Imeh v Michael, Michael Junior | 4-6,6-1,6-3 |
| ITF Nigeria F2 Qual | 2018/04/22 10:50 | Gerritsen, Stephan v Ubon, Joseph Imeh | 7-6,7-6 |
| ITF Nigeria F2 Qual | 2018/04/21 11:00 | Michael, Michael Junior v Ubon, Joseph Imeh | 1-6,1-6 |
| ITF Zimbabwe F1 | 2018/06/02 08:00 | Benjamin Lock v Garanganga, Takanyi | 7-6,6-2 |
| ITF Zimbabwe F1 | 2018/06/01 08:00 | Benjamin Lock v Howard-Tripp, Joshua | 6-3,6-3 |
| ITF Zimbabwe F1 | 2018/05/31 08:00 | Benjamin Lock v Schmid, Aaron | 6-2,6-1 |
| ITF Zimbabwe F1 | 2018/05/30 07:00 | Benjamin Lock v Du Toit, Lance-Pierre | 6-2,6-1 |
| ITF Zimbabwe F1 | 2018/05/29 08:40 | Benjamin Lock v Bushamuka, William | 6-2,6-7,6-4 |
| Challenger Puerto Vallarta Qual | 2018/04/28 22:35 | Benjamin Lock v Martinez, Luis David | 6-4,4-6,6-7 |
| Challenger Leon Qual | 2018/04/21 19:00 | Franco Agamenone v Benjamin Lock | 6-4,7-6 |
| Challenger Guadalajara Qual | 2018/04/14 15:00 | Benjamin Lock v Gomez, Lucas | 6-7,4-6 |