| 1571.2 | 1438 | 20 | 20 | Lewaks, S (Shaundre) | | WCU | 1578.5 | 1508.8 | West Coast Schools Chess Prestige Championships 2024 (U18+U20 Boys) | 4 | 2024-02-24 | R | B | 0 | 0.45 | -0.45 | -5.4 | 0.38 | -0.38 | -7.6 |
| 1521.9 | 1411.1 | 20 | 20 | Lewaks, S (Shaundre) | | WCU | 1554.8 | 1490.2 | Basil Ellman Rapid 2023 (C) | 5 | 2023-09-30 | R | B | 0 | 0.42 | -0.42 | -5 | 0.37 | -0.37 | -7.4 |
| 1443.6 | 1248.4 | 20 | 20 | Lewaks, S (Shaundre) | | WCU | 1528.6 | 1489.8 | Clanwilliam Open 2022 (A) | 5 | 2022-12-10 | R | W | 0 | 0.44 | -0.44 | -5.8 | 0.26 | -0.26 | -5.2 |
| 1367 | 1357.8 | 20 | 20 | Lewaks, S (Shaundre) | | WCU | 1515 | 1480.8 | Western Cape Woman`s Championship 2022 (Open) | 4 | 2022-09-03 | S | W | 0 | 0.37 | -0.37 | -7 | 0.4 | -0.4 | -8 |
| 1360.5 | 1289.8 | 20 | 20 | Lewaks, S (Shaundre) | | WCU | 1499.8 | 1416.5 | Onder-Weskus Top Skole 2022 (Hoerskool) | 2 | 2022-06-04 | R | B | 0 | 0.3 | -0.3 | -3.6 | 0.31 | -0.31 | -6.2 |
| 1415.1 | 1175.8 | 20 | 20 | Lewaks, S (Shaundre) | | WCU | 1499.5 | 1199.6 | Coast to Coast 2021 (Blitz) | 5 | 2021-08-27 | B | B | 1 | 0.36 | 0.64 | 2.3 | 0.43 | 0.57 | 11.4 |
| 1332.9 | 1252.7 | 20 | 20 | Lewaks, S (Shaundre) | | WCU | 1420.8 | 1421 | 2nd Annual Basil Ellman Tournament 2019 (A) | 6 | 2019-12-17 | S | B | 0 | 0.36 | -0.36 | -6 | 0.26 | -0.26 | -5.2 |
| 1263.2 | 1168.2 | 20 | 20 | Lewaks, S (Shaundre) | | WCU | 1419.6 | 1386.7 | Western Cape Womans Month Tournament 2019 (Elite) | 4 | 2019-08-10 | S | W | 0 | 0.36 | -0.36 | -6.8 | 0.29 | -0.29 | -5.8 |
| 1159.9 | 1279.8 | 20 | 20 | Lewaks, S (Shaundre) | | WCU | 1137 | 1196.4 | West Coast Invitational 2018 | 4 | 2018-11-17 | R | W | 0 | 0.57 | -0.57 | -4.4 | 0.64 | -0.64 | -12.8 |
| 1119.1 | 1067.4 | 20 | 20 | Lewaks, S (Shaundre) | | WCU | 1205.7 | 1160.4 | Coaching Clinic Tournament 2018 | 4 | 2018-10-03 | S | B | 1 | 0.36 | 0.64 | 10.8 | 0.35 | 0.65 | 13 |
| 1080 | 1019 | 20 | 20 | Lewaks, S (Shaundre) | | WCU | 1190.5 | 1154.3 | West Coast League 2018 (B) | 5 | 2018-09-01 | S | D | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
