| 1086.4 | 1089.1 | 20 | 20 | Esterhuizen, WJ (Willem Johannes) | | NBR | 1251.9 | 1254.7 | Laerskool Proteapark 2019 (A) | 5 | 2019-05-18 | S | W | 1 | 0.35 | 0.65 | 10.8 | 0.35 | 0.65 | 13 |
| 973 | 973 | 20 | 20 | Esterhuizen, WJ (Willem Johannes) | | NBR | 884.8 | 884.8 | Laerskool Vastrap 2018 (Open) | 4 | 2018-02-03 | S | W | 1 | 0.64 | 0.36 | 6 | 0.64 | 0.36 | 7.2 |
| 914 | 914 | 20 | 20 | Esterhuizen, Wj (Willem Johannes) | | NBR | 736 | 736 | Proteapark Chess 2017 (U16) | 5 | 2017-04-22 | S | W | 1 | 0.73 | 0.27 | 4.5 | 0.27 | 0.73 | 14.6 |
| 878 | 878 | 20 | 20 | Esterhuizen, Wj (Willem Johannes) | | NBR | 756 | 756 | Hoerskool Brits Chess 2017 (B) | 2 | 2017-03-11 | S | W | 1 | 0.67 | 0.33 | 5.5 | 0.33 | 0.67 | 13.4 |
