| 1468.3 | 1465.5 | 20 | 20 | Koning, L (Lehan) | | GTP | 1530.2 | 1527.1 | 2023 Milos Ristic Open Tournament (B) | 4 | 2023-04-27 | S | B | 0.5 | 0.39 | 0.11 | 1.8 | 0.39 | 0.11 | 2.2 |
| 1466.4 | 1465 | 20 | 20 | Koning, L (Lehan) | | GTP | 1551.1 | 1542.5 | 2022 Tshwane Chess Open Registration Tournament (B) | 3 | 2022-01-29 | S | W | 0 | 0.44 | -0.44 | -7.3 | 0.45 | -0.45 | -9 |
| 1334 | 1323.6 | 20 | 20 | Koning, L (Lehan) | | GTP | 1540.5 | 1526.5 | 2021 D3 Individual (U13 Open) | 5 | 2021-10-13 | S | W | 0.5 | 0.3 | 0.2 | 3.3 | 0.31 | 0.19 | 3.8 |
| 1339.3 | 1348.4 | 20 | 20 | Koning, L (Lehan) | | GTP | 1383.4 | 1380.5 | 2019 Etienne Lewis Trials (U12 Boys) | 6 | 2019-09-01 | S | B | 0 | 0.41 | -0.41 | -8.2 | 0.42 | -0.42 | -8.4 |
| 1254.3 | 1251.5 | 20 | 20 | Koning, L (Lehan) | | GTP | 1315.8 | 1312.1 | Wonderboom Interhuis 2019 (U11) | 5 | 2019-05-04 | S | W | 0 | 0.47 | -0.47 | -7.8 | 0.47 | -0.47 | -9.4 |
| 905 | 905 | 20 | 20 | Koning, L (Lehan) | | GTP | 1000 | 1000 | 2017 Tshwane Chess Etienne Lewis (U10 Boys) | 7 | 2017-09-03 | S | B | 0 | 0.37 | -0.37 | -7.4 | -0.37 | 0.37 | 7.4 |
| 751 | 751 | 20 | 20 | Koning, L (Lehan) | | GTP | 937 | 937 | 2016 Tshwane Chess Etienne Lewis Trials (U10 Boys) | 5 | 2016-09-03 | S | W | 1 | 0.26 | 0.74 | 14.8 | 0.74 | 0.26 | 5.2 |
| 722 | 722 | 20 | 20 | Koning, L (Lehan) | | GTP | 854 | 854 | D3 Individual School Trails 2016 (U9 Boys) | 3 | 2016-04-16 | S | W | 0 | 0.32 | -0.32 | -5.3 | -0.32 | 0.32 | 6.4 |
| 676 | 676 | 20 | 20 | Koning, L (Lehan) | | GTP | 772 | 772 | Waterkloof Open 2016 (C) | 5 | 2016-03-05 | S | W | 0 | 0.37 | -0.37 | -7 | -0.37 | 0.37 | 7.4 |
| 648 | 648 | 20 | 20 | Koning, L (Lehan) | | GTP | 856 | 856 | D3 Individual Trails 2015 (U9 Boys) | 3 | 2015-05-16 | S | B | 0 | 0.23 | -0.23 | -3.8 | -0.23 | 0.23 | 4.6 |
| 0 | 0 | 20 | 20 | Koning, L (Lehan) | | GTP | 624 | 624 | Etienne Lewis Under 8 Section I Born In ’07 Late | 4 | 2014-08-08 | S | W | 1 | 0 | 1 | 18.8 | 0 | 1 | 20 |
| 0 | 0 | 20 | 20 | Koning, L (Lehan) | | GTP | 624 | 624 | Alekhine Open 2014 - Section E (U 8 Born On Or Aft | 3 | 2014-08-02 | S | B | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
