Stadium: Centre Court Round: 25 Ground: Hardcourt outdoor
| ITF Nigeria F3 | 2018/05/02 12:30 | Thomas Otu v Maximilian Neuchrist | 3-6,4-6 |
| ITF Nigeria F3 | 2018/05/01 12:30 | Thomas Otu v Anurag Nenwani | 7-5,6-2 |
| ITF Nigeria F5 | 2017/10/17 10:35 | Leny Mitjana v Thomas Otu | 6-2,6-0 |
| ITF Nigeria F4 | 2017/10/10 08:30 | Thomas Otu v Matej Sabanov | 0-6,3-6 |
| ITF Nigeria F4 Qual | 2017/10/08 12:05 | Thomas Otu v Emmanuel Idoko | 6-3,5-7,6-3 |
| ITF Nigeria F4 Qual | 2017/10/07 09:00 | Thomas Otu v Emmanuel Chinedu Dim | 6-0,6-1 |
| ITF Nigeria F3 | 2017/05/15 09:00 | Thomas Otu v Alessandro Bega | 1-6,2-6 |
| ITF Nigeria F2 | 2017/05/09 10:55 | Christian Paul v Thomas Otu | 7-6,6-7,7-6 |
| ITF Nigeria F4 | 2018/10/02 09:00 | Mukhtar Andu v Benjamin Lock | 1-6,1-6 |
| Challenger Columbus | 2018/09/16 15:30 | David Perez Sanz v Benjamin Lock | 6-1,6-1 |
| Challenger Columbus | 2018/09/15 21:05 | Benjamin Lock v Axel Geller | 4-6,6-4,7-6 |
| Challenger Cary | 2018/09/08 19:10 | Bar Tzuf Botzer v Benjamin Lock | 6-3,6-4 |
| Challenger Gwangju | 2018/08/15 06:00 | Benjamin Lock v Alexander Bublik | 2-6,5-7 |
| Challenger Gwangju | 2018/08/14 01:00 | Yunseong Chung v Benjamin Lock | 4-6,6-4,3-6 |
| Challenger Jinan | 2018/08/05 03:45 | Miliaan Niesten v Benjamin Lock | 6-4,6-3 |
| Challenger Chengdu Qual | 2018/07/28 05:10 | Vasko Mladenov v Benjamin Lock | 6-4,6-4 |