| 1699.4 | 1746.6 | 28 | 28 | Manning, C (Callan) | JM | WCT | 1844.6 | 1848.3 | South African Junior Closed Chess Championship 2026 (U12 Open) | 5 | 2026-03-30 | S | W | 1 | 0.37 | 0.63 | 17.6 | 0.42 | 0.58 | 16.1 |
| 1656.7 | 1700.7 | 28 | 28 | Manning, C (Callan) | JM | WCT | 1820.5 | 1805.1 | CT Metro Schools Individual Closed 2026 (U13 Boys) | 5 | 2026-03-08 | S | W | 0.5 | 0.35 | 0.15 | 3.6 | 0.42 | 0.08 | 2.2 |
| 1585.8 | 1554.2 | 20 | 20 | Manning, C (Callan) | | WCT | 1622.1 | 1598.5 | CT Metro Schools Individual Closed 2025 (U11 Open) | 5 | 2025-03-02 | S | B | 0 | 0.42 | -0.42 | -7.1 | 0.41 | -0.41 | -8.2 |
| 1498.5 | 1554.4 | 20 | 20 | Manning, C (Callan) | | WCT | 1603.2 | 1509.9 | Laerskool Welgemoed Rapid 2024 (U12) | 5 | 2024-10-19 | R | B | 0 | 0.34 | -0.34 | -3.7 | 0.51 | -0.51 | -10.2 |
| 1460.4 | 1471.2 | 20 | 20 | Manning, C (Callan) | | WCT | 1448.5 | 1420.8 | South African Junior Closed Chess Championship 2024 (U10 Open) | 6 | 2024-04-29 | S | B | 0 | 0.47 | -0.47 | -9.4 | 0.52 | -0.52 | -10.4 |
| 1421.2 | 1386.8 | 20 | 20 | Manning, C (Callan) | | WCT | 1481 | 1466.9 | Western Cape Closed Championship 2023 (C) | 1 | 2023-09-24 | S | B | 0 | 0.39 | -0.39 | -7.3 | 0.36 | -0.36 | -7.2 |
| 1540.3 | 1436.1 | 20 | 20 | Manning, C (Callan) | | WCT | 1503.7 | 1466.6 | Western Cape PS Individuals 2023 (U9 Boys) | 5 | 2023-05-06 | S | W | 1 | 0.58 | 0.42 | 7 | 0.51 | 0.49 | 9.8 |
| 1540.3 | 1436.1 | 20 | 20 | Manning, C (Callan) | | WCT | 1503.7 | 1466.6 | Steinitz Open 2023 (A+B) | 6 | 2023-05-28 | S | B | 1 | 0.5 | 0.5 | 9.4 | 0.42 | 0.58 | 11.6 |
| 1513.1 | 1619.9 | 20 | 20 | Manning, C (Callan) | | WCT | 1518 | 1553.7 | Cape Town Metro Schools Chess Closed Individuals 2023 (U9 Boys) | 5 | 2023-03-04 | R | B | 1 | 0.45 | 0.55 | 6.6 | 0.54 | 0.46 | 9.2 |
| 1263 | 1271.6 | 20 | 20 | Manning, C (Callan) | | WCT | 1261.5 | 1240 | Western Province Open 2022 (U10) | 2 | 2022-02-26 | S | W | 1 | 0.54 | 0.46 | 8 | 0.58 | 0.42 | 8.4 |
| 1200 | 1200 | 20 | 20 | Manning, C (Callan) | | WCT | 1200 | 1200 | 2022 Cape Of Good Hope Open (U10) | 5 | 2022-01-30 | S | B | 1 | 0.46 | 0.54 | 9.4 | 0.46 | 0.54 | 10.8 |
