| ITF Malaysia F2 | 2018/07/08 06:30 | Sumit Sarkar v Kenta Kurita | 6-3,6-1 |
| ITF Malaysia F2 | 2018/07/08 02:00 | Sumit Sarkar v Bernardo A P E Oliveira | 6-3,6-3 |
| ITF Hong Kong F2 | 2018/07/03 04:30 | Sumit Sarkar v Hei Yin Andrew Li | 3-6,0-6 |
| ITF Hong Kong F2 Qual | 2018/07/01 02:00 | Sumit Sarkar v Stefan Vujic | 6-4,1-6,6-4 |
| ITF Hong Kong F2 Qual | 2018/06/30 02:00 | Sumit Sarkar v Chattarin Wareesri | 6-0,6-0 |
| ITF Spain F15 | 2018/06/17 09:30 | Clement Geens v Sumit Sarkar | 7-5,7-5 |
| ITF Spain F15 | 2018/06/16 15:00 | Sumit Sarkar v Diego-Jose Manrique-Velazquez | 6-1,6-4 |
| ITF Spain F15 | 2018/06/15 16:05 | Ignasi De Rueda De Genover v Sumit Sarkar | 3-6,6-1,0-6 |
| ITF Malaysia F2 | 2018/07/08 12:30 | Taha Kapadia v Courtney John Lock | 3-6,2-6 |
| ITF Malaysia F2 | 2018/07/08 02:00 | Fitriadi M Rifqi v Courtney John Lock | 6-7,0-6 |
| ITF Zimbabwe F3 | 2018/06/11 07:00 | Tukhula Jacobs v Courtney John Lock | 6-2,6-3 |
| ITF Zimbabwe F2 | 2018/06/08 08:00 | Courtney John Lock v Connor Farren | 1-6,2-6 |
| ITF Zimbabwe F2 | 2018/06/06 07:00 | Dhruv Sunish v Courtney John Lock | 6-7,3-6 |
| ITF Zimbabwe F1 | 2018/05/28 10:15 | Courtney John Lock v Takanyi Garanganga | 2-6,4-6 |
| Challenger Las Vegas Qual | 2017/10/14 17:30 | Courtney John Lock v Luis David Martinez | 2-6,3-6 |
| ITF Turkey F30 Qual | 2017/08/12 07:00 | Vazha Shubladze v Courtney John Lock | 6-4,6-4 |