| 1546.7 | 1517.8 | 20 | 20 | Lewaks, S (Shaundre) | | WCU | 1590 | 1524.9 | St. Helena Bay Chess Club Open 2024 (A) | 5 | 2024-12-07 | S | W | 0 | 0.49 | -0.49 | -8.1 | 0.53 | -0.53 | -10.6 |
| 1632.4 | 1606.2 | 20 | 20 | Lewaks, S (Shaundre) | | WCU | 1585.6 | 1578.6 | West Coast & Mykonos Open 2024 (Elite) | 5 | 2024-05-19 | S | D | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1630.6 | 1567.7 | 20 | 20 | Lewaks, S (Shaundre) | | WCU | 1578.5 | 1508.8 | West Coast Schools Chess Prestige Championships 2024 (U18+U20 Boys) | 5 | 2024-02-24 | R | W | 0.5 | 0.6 | -0.1 | -1.2 | 0.61 | -0.11 | -2.2 |
| 1565.1 | 1325.1 | 20 | 20 | Lewaks, S (Shaundre) | | WCU | 1492.8 | 1190.6 | WCCI Open 2023 (Blitz) | 5 | 2023-04-29 | B | B | 1 | 0.54 | 0.46 | 1.7 | 0.61 | 0.39 | 7.8 |
| 1493 | 1375.9 | 20 | 20 | Lewaks, S (Shaundre) | | WCU | 1495.7 | 1439.6 | Best of The West 2022 (Boys Open) | 5 | 2022-11-19 | R | W | 0.5 | 0.54 | -0.04 | -0.5 | 0.47 | 0.03 | 0.6 |
| 1470.9 | 1309.7 | 20 | 20 | Lewaks, S (Shaundre) | | WCU | 1497.6 | 1449.8 | West Coast Schools Chess Grand Challenge 2022 (HS Super) | 5 | 2022-10-29 | R | W | 0.5 | 0.51 | -0.01 | -0.1 | 0.38 | 0.12 | 2.4 |
| 1420.8 | 1398.7 | 20 | 20 | Lewaks, S (Shaundre) | | WCU | 1499.8 | 1477.3 | Deep Blue Club Championships 2022 (Juniors) | 4 | 2022-06-06 | S | D | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1310.7 | 1264.2 | 20 | 20 | Lewaks, S (Shaundre) | | WCU | 1420.8 | 1421 | 2nd Annual Basil Ellman Tournament 2019 (A) | 1 | 2019-12-16 | S | W | 0 | 0.41 | -0.41 | -6.9 | 0.36 | -0.36 | -7.2 |
| 1366.7 | 1354.3 | 20 | 20 | Lewaks, S (Shaundre) | | WCU | 1419.3 | 1389.6 | 2019 National Club Chess Championships (B) | 6 | 2019-09-29 | S | B | 0 | 0.4 | -0.4 | -8 | 0.42 | -0.42 | -8.4 |
| 1307.4 | 1388.4 | 20 | 20 | Lewaks, S (Shaundre) | | WCU | 1390.4 | 1297.5 | Weskus Topskole 2019 (U13) | 3 | 2019-07-20 | R | B | 0 | 0.36 | -0.36 | -4.3 | 0.56 | -0.56 | -11.2 |
| 1307.4 | 1270.9 | 20 | 20 | Lewaks, S (Shaundre) | | WCU | 1390.4 | 1373 | Lambertsbaai Development 2019 (Open) | 6 | 2019-07-06 | S | B | 0 | 0.36 | -0.36 | -6.3 | 0.34 | -0.34 | -6.8 |
| 1208 | 1358.5 | 20 | 20 | Lewaks, S (Shaundre) | | WCU | 1137 | 1196.4 | West Coast Invitational 2018 | 5 | 2018-11-17 | R | B | 0 | 0.54 | -0.54 | -4.2 | 0.65 | -0.65 | -13 |
| 1223.2 | 1290.5 | 20 | 20 | Lewaks, S (Shaundre) | | WCU | 1205.7 | 1222 | Courtrai Young Masters 2018 (U12) | 4 | 2018-10-27 | R | W | 0.5 | 0.56 | -0.06 | -0.5 | 0.62 | -0.12 | -2.4 |
| 1142 | 1117.2 | 20 | 20 | Lewaks, S (Shaundre) | | WCU | 1174.6 | 1166.9 | Mittal Steel Club Closed 2018 (B) | 5 | 2018-06-09 | S | W | 1 | 0.5 | 0.5 | 8.3 | 0.48 | 0.52 | 10.4 |
| 1303.7 | 1300.1 | 20 | 20 | Lewaks, S (Shaundre) | | WCU | 1226 | 1232 | Development Tournament 2018 | 5 | 2018-04-04 | S | W | 0 | 0.63 | -0.63 | -10.5 | 0.62 | -0.62 | -12.4 |
