| 1531.7 | 1498.8 | 20 | 20 | Opperman, C (Connor) | | WOS | 1762 | 1700.8 | Overberg Schools High School Trials 2026 (U17 Boys) | 5 | 2026-02-21 | R | B | 0 | 0.19 | -0.19 | -2.3 | 0.22 | -0.22 | -4.4 |
| 1545.4 | 1521.7 | 20 | 20 | Opperman, C (Connor) | | WOS | 1689.1 | 1663.7 | Kleinmond Chess Club Open 2025 (Championship) | 1 | 2025-08-30 | R | B | 0 | 0.29 | -0.29 | -3.1 | 0.29 | -0.29 | -5.8 |
| 1583.6 | 1561.1 | 20 | 20 | Opperman, C (Connor) | | WOS | 1684 | 1705.1 | Hermanus Chess Club Invitational May 2025 | 1 | 2025-05-24 | S | B | 0 | 0.34 | -0.34 | -5.6 | 0.29 | -0.29 | -5.8 |
| 1509.9 | 1450.9 | 20 | 20 | Opperman, C (Connor) | | WOS | 1649.9 | 1661.5 | Kleinmond Chess Club Open 2024 (Championship) | 1 | 2024-09-07 | R | W | 0 | 0.38 | -0.38 | -4.1 | 0.3 | -0.3 | -6 |
| 1510.1 | 1517.1 | 20 | 20 | Opperman, C (Connor) | | WOS | 1678.7 | 1646.4 | Overberg Top Schools 2023 (U13) | 4 | 2023-08-05 | S | W | 0.5 | 0.35 | 0.15 | 2.5 | 0.39 | 0.11 | 2.2 |
| 1550.4 | 1555.2 | 20 | 20 | Opperman, C (Connor) | | WOS | 1680.8 | 1610.3 | Overberg School Chess Closed Tournament 2023 (U13 Boys) | 5 | 2023-03-25 | S | B | 0 | 0.31 | -0.31 | -5.1 | 0.39 | -0.39 | -7.8 |
| 1550.4 | 1377.6 | 20 | 20 | Opperman, C (Connor) | | WOS | 1680.8 | 1576.4 | Overberg Primary School Trials (Region 2) | 6 | 2023-03-10 | R | B | 0 | 0.31 | -0.31 | -2.9 | 0.23 | -0.23 | -4.6 |
| 1546.2 | 1329.7 | 20 | 20 | Opperman, C (Connor) | | WOS | 1672.8 | 1560.7 | Overberg Schools Open Tournament 2023 (U14) | 5 | 2023-02-11 | R | B | 0 | 0.31 | -0.31 | -2.9 | 0.19 | -0.19 | -3.8 |
| 1449.6 | 1333.3 | 20 | 20 | Opperman, C (Connor) | | WOS | 1596.2 | 1254.4 | Overberg Schools Trials 2021 (U11) | 4 | 2021-09-18 | R | B | 0 | 0.29 | -0.29 | -3.5 | 0.55 | -0.55 | -11 |
| 1468.2 | 1468.1 | 20 | 20 | Opperman, C (Connor) | | WOS | 1506.4 | 1499.8 | OCF Club Champs 2021 (Juniors) | 1 | 2021-06-05 | S | B | 0 | 0.41 | -0.41 | -6.8 | 0.42 | -0.42 | -8.4 |
| 1468.2 | 1468.1 | 20 | 20 | Opperman, C (Connor) | | WOS | 1506.4 | 1499.8 | OCF Club Champs 2021 (Juniors) | 6 | 2021-08-14 | S | W | 0 | 0.5 | -0.5 | -8.3 | 0.5 | -0.5 | -10 |
| 1457 | 1460.4 | 20 | 20 | Opperman, C (Connor) | | WOS | 1492.8 | 1484.2 | OCF Chess Tournament 3 2020 (U12) | 5 | 2020-03-07 | S | B | 0 | 0.42 | -0.42 | -7 | 0.43 | -0.43 | -8.6 |
| 1308.3 | 1285.4 | 20 | 20 | Opperman, C (Connor) | | WOS | 1271.8 | 1273.1 | Spring Open 2019 (U10) | 5 | 2019-09-14 | S | W | 0 | 0.58 | -0.58 | -9.6 | 0.56 | -0.56 | -11.2 |
| 1224.6 | 1208.7 | 20 | 20 | Opperman, C (Connor) | | WOS | 1204.3 | 1203.6 | Trial 2 Teddy/Toy Tournament 2019 (U8+U10) | 5 | 2019-04-06 | S | B | 0 | 0.48 | -0.48 | -8 | 0.46 | -0.46 | -9.2 |
