| 1541 | 1544.7 | 20 | 20 | Esterhuizen, WJ (Willem Johannes) | | NBR | 1352.3 | 1354.7 | Inter Region 2019 (U18 Open) | 2 | 2019-10-19 | S | B | 1 | 0.68 | 0.32 | 5.3 | 0.68 | 0.32 | 6.4 |
| 1520.6 | 1521.1 | 20 | 20 | Esterhuizen, WJ (Willem Johannes) | | NBR | 1334.4 | 1332.4 | Laerskool Rustenburg 2019 (U18) | 4 | 2019-08-17 | S | W | 1 | 0.76 | 0.24 | 4 | 0.76 | 0.24 | 4.8 |
| 1399.3 | 1412.3 | 20 | 20 | Esterhuizen, WJ (Willem Johannes) | | NBR | 1141.9 | 1144.2 | Fields College Open 2019 (Open) | 1 | 2019-02-02 | S | B | 1 | 0.76 | 0.24 | 4 | 0.77 | 0.23 | 4.6 |
| 1350.1 | 1360.2 | 20 | 20 | Esterhuizen, WJ (Willem Johannes) | | NBR | 1169.7 | 1170.2 | Lebone II Chess 2018 (U18) | 3 | 2018-09-01 | S | W | 1 | 0.75 | 0.25 | 4.1 | 0.76 | 0.24 | 4.8 |
| 1350.1 | 1360.2 | 20 | 20 | Esterhuizen, WJ (Willem Johannes) | | NBR | 1169.7 | 1170.2 | Bojanala Regionals 2018 (U18+U20) | 3 | 2018-09-15 | S | B | 1 | 0.67 | 0.33 | 5.5 | 0.68 | 0.32 | 6.4 |
| 1205 | 1205 | 20 | 20 | Esterhuizen, Wj (Willem Johannes) | | NBR | 813 | 813 | 2017 Inter-Regional (Under U16 Open) | 1 | 2017-05-12 | S | W | 1 | 0.92 | 0.08 | 1.3 | 0.08 | 0.92 | 18.4 |
| 1232 | 1232 | 20 | 20 | Esterhuizen, Wj (Willem Johannes) | | NBR | 840 | 840 | Vastrap Open 2016 (B) | 1 | 2016-02-13 | S | B | 1 | 0.92 | 0.08 | 1.3 | 0.08 | 0.92 | 18.4 |
| 1232 | 1232 | 20 | 20 | Esterhuizen, Wj (Willem Johannes) | | NBR | 840 | 840 | Bojanala Registration 2016 (U16) | 1 | 2016-01-30 | S | W | 1 | 0.92 | 0.08 | 1.3 | 0.08 | 0.92 | 18.4 |
| 1183 | 1183 | 20 | 20 | Esterhuizen, Wj (Willem Johannes) | | NBR | 824 | 824 | 2015 Brits Primary (Section A B) | 2 | 2015-05-23 | S | B | 1 | 0.9 | 0.1 | 1.7 | 0.1 | 0.9 | 18 |
| 1182 | 1182 | 20 | 20 | Esterhuizen, Wj (Willem Johannes) | | NBR | 914 | 914 | Inter Region 2015 (U14) | 2 | 2015-05-08 | S | W | 1 | 0.83 | 0.17 | 2.9 | 0.17 | 0.83 | 16.6 |
