| Surname | First name | Contest | Medal |
| Herath | Asanka | ioi95 | silver |
| Herath | Asanka | ioi96 | bronze |
| Herath | Asanka | ioi98 | silver |
| Karunaratna | Tushara | ioi98 | bronze |
| Karunaratna | Tushara | ioi99 | bronze |
| Karunaratna | Tushara | ioi2000 | bronze |
| Kottahachchi | Buddhika | ioi97 | bronze |
| Zavahir | Sifaan | ioi94 | silver |
| Zavahir | Sifaan | ioi95 | gold |
| Zavahir | Sifaan | ioi96 | bronze |