Stadium: Centre Court Round: 54
| ITF Spain F27 | 2017/08/28 08:00 | Klegou, Alexis v Sylvester Emmanuel | 6-3,6-2 |
| Nigeria F5, Singles | 2016/10/12 14:20 | Sylvester Emmanuel v Klegou, Alexis | 6-7,6-1,7-6 |
| Nigeria F1, Singles | 2018/04/18 09:00 | Eriksson, Markus v Klegou, Alexis | 7-6,3-6,6-4 |
| Nigeria F1, Singles | 2018/04/17 11:20 | Klegou, Alexis v Sabanov, Matej | 6-1,6-1 |
| Nigeria F5, Singles | 2017/10/17 12:00 | Klegou, Alexis v Sabry, Sherif | 1-6,2-6 |
| ITF Nigeria F4 | 2017/10/11 09:00 | Klegou, Alexis v Krstin, Pedja | 4-6,2-6 |
| ITF Nigeria F4 | 2017/10/10 11:45 | Klegou, Alexis v Christopher Bulus | 6-4,7-5 |
| ITF Egypt F27 | 2017/09/29 14:30 | Perez Sanz, David v Klegou, Alexis | 6-4,7-5 |
| ITF Egypt F27 | 2017/09/28 14:00 | Klegou, Alexis v Moez Echargui | 6-1,4-6,6-4 |
| ITF Egypt F27 | 2017/09/27 15:45 | Ahuja, Sagar v Klegou, Alexis | 2-6,2-6 |
| ITF Nigeria F2 Qual | 2018/04/21 13:30 | Sizya Ernest Kivanda v Sylvester Emmanuel | 6-7,6-7 |
| Nigeria F1, Singles | 2018/04/17 14:10 | Sylvester Emmanuel v Schneider, Ronnie | 2-6,3-6 |
| Nigeria F1, Singles | 2018/04/15 10:00 | Samaha, Giovani v Sylvester Emmanuel | 4-6,5-7 |
| Nigeria F1, Singles | 2018/04/14 10:00 | Obasoto, Adebola v Sylvester Emmanuel | 1-6,2-6 |
| ITF Spain F31 Qual | 2017/09/25 07:30 | Javier Barranco Cosano v Sylvester Emmanuel | 6-0,6-2 |
| ITF Spain F31 Qual | 2017/09/24 07:30 | Bruandet, Loick v Sylvester Emmanuel | 5-7,3-6 |
| Spain F30, Singles | 2017/09/19 08:30 | Viktor Durasovic v Sylvester Emmanuel | 6-4,7-6 |
| ITF Spain F30 Qual | 2017/09/18 08:30 | Sylvester Emmanuel v Fernandez-Espinar, Carlos | 6-4,5-7,5-7 |