| 884.7 | 890.9 | 20 | 20 | Esterhuizen, WJ (Willem Johannes) | | NBR | 1169.7 | 1170.2 | Lebone II Chess 2018 (U18) | 2 | 2018-09-01 | S | B | 0 | 0.13 | -0.13 | -2.2 | 0.13 | -0.13 | -2.6 |
| 834.2 | 829.7 | 20 | 20 | Esterhuizen, WJ (Willem Johannes) | | NBR | 1178.7 | 1182.6 | Laerskool Brits Tournament 2018 (U18) | 5 | 2018-08-04 | S | W | 0 | 0.14 | -0.14 | -2.3 | 0.13 | -0.13 | -2.6 |
| 581 | 581 | 20 | 20 | Esterhuizen, Wj (Willem Johannes) | | NBR | 756 | 756 | Hoerskool Brits Chess 2017 (B) | 3 | 2017-03-11 | S | B | 0 | 0.27 | -0.27 | -4.5 | -0.27 | 0.27 | 5.4 |
| 627 | 627 | 20 | 20 | Esterhuizen, Wj (Willem Johannes) | | NBR | 674 | 674 | Grenville Chess 2016 (U16) | 2 | 2016-08-13 | S | W | 1 | 0.43 | 0.57 | 9.5 | 0.57 | 0.43 | 8.6 |
| 0 | 0 | 20 | 20 | Esterhuizen, Wj (Willem Johannes) | | NBR | 831 | 831 | Olienpark Primary (Section B (Born 1999 2000 2001 2002) | 2 | 2015-07-25 | S | B | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
