| 1460.6 | 1447 | 20 | 20 | Koert, D (Dane) | | WCW | 1375.9 | 1367.3 | Strategema Chess October 2024 (U11) | 2 | 2024-10-05 | S | W | 0 | 0.64 | -0.64 | -10.6 | 0.63 | -0.63 | -12.6 |
| 1403.1 | 1378.2 | 20 | 20 | Koert, D (Dane) | | WCW | 1373.1 | 1370.1 | Robertson Chess Tournament Oct 2023 (U11) | 3 | 2023-10-28 | S | B | 0.5 | 0.49 | 0.01 | 0.2 | 0.47 | 0.03 | 0.6 |
| 1434.8 | 1424.6 | 20 | 20 | Koert, D (Dane) | | WCW | 1452.7 | 1224.3 | Langeberg Schools Chess Trials 2023 (U11 Open) | 2 | 2023-02-11 | R | W | 1 | 0.52 | 0.48 | 5.8 | 0.77 | 0.23 | 4.6 |
| 1399.5 | 1353.3 | 20 | 20 | Koert, D (Dane) | | WCW | 1267.7 | 1261.9 | Robertson Strategema Club 2022 (U11) | 5 | 2022-10-29 | S | W | 1 | 0.7 | 0.3 | 5 | 0.65 | 0.35 | 7 |
| 1365.2 | 1314.8 | 20 | 20 | Koert, D (Dane) | | WCW | 1232.8 | 1226.8 | Western Cape Closed Championship 2022 (U10) | 1 | 2022-09-24 | S | B | 1 | 0.61 | 0.39 | 6.5 | 0.56 | 0.44 | 8.8 |
| 1318.5 | 1260.4 | 20 | 20 | Koert, D (Dane) | | WCW | 1204.4 | 1180.7 | Langeberg Open 2022 (Sandard) | 5 | 2022-06-25 | S | B | 1 | 0.59 | 0.41 | 6.8 | 0.55 | 0.45 | 9 |
| 1248.9 | 1285.6 | 20 | 20 | Koert, D (Dane) | | WCW | 1199 | 1202 | Strategema Chess Festival 2022 (U7+U9 Girls) | 4 | 2022-05-14 | R | W | 1 | 0.6 | 0.4 | 4.8 | 0.64 | 0.36 | 7.2 |
| 1198.3 | 1200 | 20 | 20 | Koert, D (Dane) | | WCW | 1199.7 | 1200 | McGregor Chess Freedom Day Rapid 2022 (U7+U9) | 3 | 2022-04-27 | R | W | 1 | 0.54 | 0.46 | 5.5 | 0.54 | 0.46 | 9.2 |
| 1198.3 | 1200 | 20 | 20 | Koert, D (Dane) | | WCW | 1199.7 | 1200 | McGregor Kings Chess Festival 2022 (U7+U9) | 4 | 2022-04-09 | R | W | 0 | 0.54 | -0.54 | -6.5 | 0.54 | -0.54 | -10.8 |
