| Copa Davis | 03/06 18:50 | 45 | Adolfo Daniel Vallejo v Sharmal Dissanayake | 6-4,6-4 | |
| ITF Sri Lanka F3 | 06/26 04:00 | 25 | Manish Sureshkumar v Sharmal Dissanayake | Retired | |
| ITF Sri Lanka F2 | 06/21 05:30 | 27 | Sharmal Dissanayake v Pruchya Isaro | 4-6,2-6 | |
| ITF Sri Lanka F2 | 06/20 06:00 | 26 | Sharmal Dissanayake v Chanchai Sookton-Eng | 6-1,6-0 | |
| ITF Sri Lanka F2 | 06/19 09:25 | 25 | Vladyslav Orlov v Sharmal Dissanayake | 3-6,7-6,4-6 | |
| ITF Sri Lanka F1 | 06/13 04:00 | 26 | Sharmal Dissanayake v Manish Sureshkumar | 3-6,4-6 | |
| ITF Sri Lanka F1 | 06/12 04:00 | 25 | Sharmal Dissanayake v Thales Turini | Retired | |
| Copa Davis | 04/07 04:00 | 28 | Sharmal Dissanayake v Christopher Rungkat | Retired | |
| Copa Davis | 02/04 05:35 | 27 | Sharmal Dissanayake v Wishaya Trongcharoenchaikul | CANC | |
| Copa Davis | 02/03 04:00 | 27 | Sharmal Dissanayake v Jirat Navasirisomboon | 6-4,7-5 | |
| Copa Davis | 07/22 07:25 | 28 | Sharmal Dissanayake v Mubarak Shannan Zayid | 6-4,6-3 | |
| Copa Davis | 07/20 05:35 | - | Sharmal Dissanayake v Kareem Al Allaf | 1-6,6-7 |