| 1762 | 1700.8 | 20 | 20 | Kiessling, K (Kai) | | WOS | 1482.4 | 1421.8 | Overberg Schools High School Trials 2026 (U17 Boys) | 4 | 2026-02-21 | R | B | 1 | 0.78 | 0.22 | 2.6 | 0.78 | 0.22 | 4.4 |
| 1691.9 | 1696.7 | 20 | 20 | Kiessling, K (Kai) | | WOS | 1414.6 | 1419.5 | Overberg Schools - HS Closed 2025 (U15 Boys) | 4 | 2025-03-22 | S | W | 1 | 0.86 | 0.14 | 2.3 | 0.86 | 0.14 | 2.8 |
| 1663.2 | 1622.9 | 20 | 20 | Kiessling, K (Kai) | | WOS | 1422.3 | 1433.4 | Overberg High Schools Trails 2024 (U15 Boys) | 3 | 2024-03-02 | S | B | 1 | 0.74 | 0.26 | 4.3 | 0.68 | 0.32 | 6.4 |
| 1655.2 | 1669.9 | 20 | 20 | Kiessling, K (Kai) | | WOS | 1409.7 | 1286.2 | Overberg High Schools Trails 2024 (U15) | 4 | 2024-02-24 | R | B | 1 | 0.74 | 0.26 | 2.4 | 0.9 | 0.1 | 2 |
| 1680.8 | 1610.3 | 20 | 20 | Kiessling, K (Kai) | | WOS | 1332.4 | 1396.2 | Overberg School Chess Closed Tournament 2023 (U13 Boys) | 4 | 2023-03-25 | S | B | 1 | 0.86 | 0.14 | 2.3 | 0.71 | 0.29 | 5.8 |
| 1680.8 | 1576.4 | 20 | 20 | Kiessling, K (Kai) | | WOS | 1332.4 | 1222.4 | Overberg Primary School Trials (Region 2) | 5 | 2023-03-10 | R | B | 1 | 0.86 | 0.14 | 1.3 | 0.87 | 0.13 | 2.6 |
| 1672.8 | 1560.7 | 20 | 20 | Kiessling, K (Kai) | | WOS | 1322.8 | 1192.2 | Overberg Schools Open Tournament 2023 (U14) | 3 | 2023-02-11 | R | W | 1 | 0.95 | 0.05 | 0.5 | 0.97 | 0.03 | 0.6 |
| 1544.3 | 1524.6 | 20 | 20 | Kiessling, K (Kai) | | WOS | 1267.4 | 1231 | Overberg Primary Schools Closed 2022 (U13 Boys) | 2 | 2022-03-12 | S | W | 1 | 0.86 | 0.14 | 2.3 | 0.88 | 0.12 | 2.4 |
| 1596.2 | 1254.4 | 20 | 20 | Kiessling, K (Kai) | | WOS | 1234.6 | 1213.4 | Overberg Schools Trials 2021 (U11) | 3 | 2021-09-18 | R | B | 1 | 0.88 | 0.12 | 1.4 | 0.51 | 0.49 | 9.8 |
| 1499.2 | 1488 | 20 | 20 | Kiessling, K (Kai) | | WOS | 1215.1 | 1213.3 | OCF Roadshow 2020 (Juniors) | 1 | 2020-11-21 | S | B | 1 | 0.79 | 0.21 | 3.5 | 0.78 | 0.22 | 4.4 |
