| 1200 | 1177.8 | 20 | 20 | Van Kradenburg, A (Antonio) | | NZF | 1128.8 | 1120 | NC Open Schools 2020 (U13 Open) | 5 | 2020-02-29 | S | W | 0 | 0.62 | -0.62 | -10.3 | 0.61 | -0.61 | -12.2 |
| 1272.6 | 1265.6 | 20 | 20 | Van Kradenburg, A (Antonio) | | NZF | 1122.6 | 1110 | South African Schools Individuals Chess Championships 2019 (U13 Open) | 3 | 2019-06-19 | S | B | 0 | 0.63 | -0.63 | -10.5 | 0.64 | -0.64 | -12.8 |
| 949.2 | 1011 | 20 | 20 | Van Kradenburg, A (Antonio) | | NZF | 742.3 | 789.6 | Inter Regional 2018 (U12 Team) | 3 | 2018-05-05 | S | W | 0 | 0.78 | -0.78 | -12.9 | 0.8 | -0.8 | -16 |
| 571 | 571 | 20 | 20 | Van Kradenburg, A (Antonio) | | NC | 500 | 500 | Northern Cape Inter-Provincial Trials 2017 (U12) | 6 | 2017-04-01 | S | W | 1 | 0.6 | 0.4 | 6.6 | 0.4 | 0.6 | 12 |
| 556 | 556 | 20 | 20 | Van Kradenburg, A (Antonio) | | NC | 510 | 510 | Nc Qualifying Tournament 15 October 2016 (U10) | 2 | 2016-10-15 | S | B | 1 | 0.56 | 0.44 | 7.3 | 0.44 | 0.56 | 11.2 |
