 
                                    | Date | Players & Opening | Result | ECO | View | 
|---|---|---|---|---|
| 2021.10.31 | Alsisaria, Shreyansh vs (1430) Peramunetilleke, Savin Kavindu Eastern Asia Youth Online Chess Championship - Under 10 Girls Semi-Slav Meran - Wade | 0-1 | D47 | |
| 2021.10.31 | Peramunetilleke, Savin Kavindu (1430)  vs Nguyen, Ngo Trung Quan Eastern Asia Youth Online Chess Championship - Under 10 Girls Scandinavian | 1-0 | B01 | |
| 2021.10.31 | Tee, Geng Kai (1097)  vs (1430) Peramunetilleke, Savin Kavindu Eastern Asia Youth Online Chess Championship - Under 10 Girls Scotch - Scotch Schmid | 1-0 | C45 | |
| 2021.10.30 | Tuguldur, Soninbayar vs (1430) Peramunetilleke, Savin Kavindu Eastern Asia Youth Online Chess Championship - Under 10 Girls Semi-Slav Meran - Wade | 1-0 | D47 | |
| 2021.10.30 | Peramunetilleke, Savin Kavindu (1430)  vs (1052) Kumar Sarma, Himanish Eastern Asia Youth Online Chess Championship - Under 10 Girls French Advance Winawer - Russian | 0-1 | C17 | |
| 2021.10.29 | Nguyen, Khanh Lam (1147)  vs (1430) Peramunetilleke, Savin Kavindu Eastern Asia Youth Online Chess Championship - Under 10 Girls Queen's Gambit Declined | 1-0 | D30 | |
| 2021.10.29 | Peramunetilleke, Savin Kavindu (1430)  vs (1187) Mukund H, Agarwal Eastern Asia Youth Online Chess Championship - Under 10 Girls Sicilian Open - Two Knights | 1/2-1/2 | B56 | |
| 2021.10.29 | Chuluunbaatar, Gerelmaa (1006)  vs (1430) Peramunetilleke, Savin Kavindu Eastern Asia Youth Online Chess Championship - Under 10 Girls Queen's Pawn - Mason | 0-1 | D00 | |
| 2019.07.21 | Bernat, Ernest (1823)  vs (1085) Peramunetilleke, Savin Kavindu XXI Obert Internacional Sant Martí 2019 Four Knights Spanish | 1/2-1/2 | C48 | |
| 2019.07.20 | Peramunetilleke, Savin Kavindu (1085)  vs (1792) Munoz Lozano, Jorge Manuel XXI Obert Internacional Sant Martí 2019 Robatsch - Quiet | 1-0 | B08 | |
| 2019.07.19 | Santos Ramos, Carlos (1818)  vs (1085) Peramunetilleke, Savin Kavindu XXI Obert Internacional Sant Martí 2019 Spanish Steinitz | 1-0 | C62 | |
| 2019.07.18 | Peramunetilleke, Savin Kavindu (1085)  vs (1813) Garcia Clemente, Julian Fco. XXI Obert Internacional Sant Martí 2019 French Paulsen - Steinitz | 1/2-1/2 | C11 | |
| 2019.07.17 | Peramunetilleke, Savin Kavindu (1085)  vs (1815) Madrid Sole, Antonio XXI Obert Internacional Sant Martí 2019 French Paulsen - Steinitz | 1/2-1/2 | C11 | |
| 2019.07.16 | Serentill Tost, Eduard (1714)  vs (1085) Peramunetilleke, Savin Kavindu XXI Obert Internacional Sant Martí 2019 Spanish Steinitz | 0-1 | C62 | |
| 2019.07.15 | Peramunetilleke, Savin Kavindu (1085)  vs (1719) Palau Soriano, Ricard XXI Obert Internacional Sant Martí 2019 Sicilian Scheveningen Najdorf | 1/2-1/2 | B90 | |
| 2019.07.14 | Carulla Pons, Carlos (1743)  vs (1085) Peramunetilleke, Savin Kavindu XXI Obert Internacional Sant Martí 2019 English Sicilian | 1/2-1/2 | A20 | |
| 2018.01.14 | Peramunetilleke, Savin Kavindu (1065)  vs Zheng, Hang Hong Kong National Junior Chess Championship 2018 Sicilian Alapin | 1/2-1/2 | B22 | |
| 2018.01.14 | Pu, Ethan (1122)  vs (1065) Peramunetilleke, Savin Kavindu Hong Kong National Junior Chess Championship 2018 Petrov - Italian | 0-1 | C42 | |
| 2018.01.14 | Luk, Danbe Kin Tsun (1221)  vs (1065) Peramunetilleke, Savin Kavindu Hong Kong National Junior Chess Championship 2018 Petrov - Three Knights | 0-1 | C42 | |
| 2018.01.13 | Peramunetilleke, Savin Kavindu (1065)  vs (1137) Lam, Chun Yung Samuel Hong Kong National Junior Chess Championship 2018 Four Knights - Scotch | 0-1 | C47 | |
| 2018.01.13 | Lu, Jacob (1073)  vs (1065) Peramunetilleke, Savin Kavindu Hong Kong National Junior Chess Championship 2018 Petrov - French | 0-1 | C42 | |
| 2018.01.13 | Peramunetilleke, Savin Kavindu (1065)  vs Puhar, Aaron Hong Kong National Junior Chess Championship 2018 Three Knights | 1-0 | C46 | |
| 2017.11.12 | Uppal, Mahir (1107)  vs (1413) Peramunetilleke, Savin Kavindu The Chess Academy ActiveKids Fall Open 2017 (Rated Standard) Nimzo-Indian Saemisch | 0-1 | E24 | |
| 2017.11.05 | Peramunetilleke, Savin Kavindu (1413)  vs Lu, Jacob The Chess Academy ActiveKids Fall Open 2017 (Rated Standard) Four Knights - Scotch | 0-1 | C47 | |
| 2017.10.29 | Chang, Noah (1106)  vs (1413) Peramunetilleke, Savin Kavindu The Chess Academy ActiveKids Fall Open 2017 (Rated Standard) Vienna - Lange (Gambit) | 0-1 | C25 | |
| 2017.10.22 | Kannappan, Thanneermalai (1332)  vs (1413) Peramunetilleke, Savin Kavindu The Chess Academy ActiveKids Fall Open 2017 (Rated Standard) Petrov | 1/2-1/2 | C42 | |
| 2017.10.08 | Peramunetilleke, Savin Kavindu (1413)  vs (1768) Ho, In Hei Henry The Chess Academy ActiveKids Fall Open 2017 (Rated Standard) Sicilian Barnes (Russian) | 0-1 | B46 | |
| 2017.01.22 | Khaderia, Aaryav vs Peramunetilleke, Savin Kavindu CAISSA Hong Kong National Junior Chess Championships 2017 Four Knights - Four Knights | 0-1 | C50 | |
| 2017.01.22 | Peramunetilleke, Savin Kavindu vs Lam, Chun Yung Samuel CAISSA Hong Kong National Junior Chess Championships 2017 Sicilian | 1-0 | B30 | |
| 2017.01.22 | Lu, Jacob vs Peramunetilleke, Savin Kavindu CAISSA Hong Kong National Junior Chess Championships 2017 Four Knights Spanish - Classical | 1-0 | C48 | |
| 2017.01.21 | Peramunetilleke, Savin Kavindu vs Yim, Bryan CAISSA Hong Kong National Junior Chess Championships 2017 Italian - Semi-Italian | 1-0 | C50 | |
| 2017.01.21 | King, Oliver Baekho vs Peramunetilleke, Savin Kavindu CAISSA Hong Kong National Junior Chess Championships 2017 Italian | 1-0 | C50 | |
| 2017.01.21 | Peramunetilleke, Savin Kavindu vs Chan, Pak Yui CAISSA Hong Kong National Junior Chess Championships 2017 Three Knights | 1-0 | C46 | |
| 2017.01.21 | Chen, Junxue vs Peramunetilleke, Savin Kavindu CAISSA Hong Kong National Junior Chess Championships 2017 Benko's opening | 0-1 | A00 | 
| Date | Players & Opening | Result | ECO | View | 
|---|---|---|---|---|
| 2025.06.09 | Peramunetilleke,Seth (2010) vs (1959) Anup Kumar,Vihaan NSW Open 2025 Petrov Modern - Symmetrical | 1-0 | C43 | |
| 2025.06.09 | Lo,Willis (2064) vs (2010) Peramunetilleke,Seth NSW Open 2025 Queen's Pawn Zukertort - London | 1/2-1/2 | D02 | |
| 2025.06.07 | Peramunetilleke,Seth (2010) vs (1956) Vincent,Alaina NSW Open 2025 Sicilian Alapin - Smith-Morra | 0-1 | B22 | |
| 2023.01.24 | Peramunetilleke,Seth (1841) vs (2405) Bjelobrk,I Oceania Zonal 2023 Sicilian Alapin - Smith-Morra | 1/2-1/2 | B22 | |
| 2022.06.11 | Peramunetilleke,Savin Kavindu (1496) vs (2332) Lane,G NSW Open 2022 Four Knights - Scotch | 0-1 | C47 |