| 1790.6 | 998.9 | 20 | 20 | Van Der Walt, JHT (Jean Hendrik T) | | NBR | 1497.9 | 1037.4 | Robday Bergsig Sport Festival 2025 (Seniors) | 5 | 2025-05-03 | R | B | 1 | 0.8 | 0.2 | 2.6 | 0.41 | 0.59 | 11.8 |
| 1448.6 | 1441 | 20 | 20 | Van Der Walt, JHT (Jean Hendrik T) | | NBR | 1376.6 | 1373 | Winter Games Chess Championships 2022 (U15 Open) | 5 | 2022-04-30 | S | B | 0 | 0.54 | -0.54 | -9 | 0.54 | -0.54 | -10.8 |
| 1387.4 | 1374 | 20 | 20 | Van Der Walt, JHT (Jean Hendrik T) | | NBR | 1382.2 | 1374 | Bojanala SAJCC Trials - Session 1 of 3 2021 (C) | 5 | 2021-11-06 | S | W | 0 | 0.55 | -0.55 | -9.2 | 0.54 | -0.54 | -10.8 |
| 1389.5 | 1379.3 | 20 | 20 | Van Der Walt, JHT (Jean Hendrik T) | | NBR | 1406.8 | 1398.5 | Brainstorm 2021 (U14+U16) | 5 | 2021-06-05 | S | W | 0.5 | 0.52 | -0.02 | -0.3 | 0.52 | -0.02 | -0.4 |
| 1346.7 | 1339.9 | 20 | 20 | Van Der Walt, JHT (Jean Hendrik T) | | NBR | 1358.2 | 1350.1 | Hoerskool Brits Toernooi 2020 (U14) | 5 | 2020-03-14 | S | B | 0.5 | 0.44 | 0.06 | 1 | 0.45 | 0.05 | 1 |
| 1356.2 | 1341.6 | 20 | 20 | Van Der Walt, JHT (Jean Hendrik T) | | NBR | 1287 | 1287.8 | Inter Region 2019 (U12 Open) | 4 | 2019-10-19 | S | W | 1 | 0.62 | 0.38 | 6.3 | 0.6 | 0.4 | 8 |
| 1376.5 | 1365.4 | 20 | 20 | Van Der Walt, JHT (Jean Hendrik T) | | NBR | 1245.8 | 1237.4 | Lebone II 2019 (U12) | 5 | 2019-09-14 | S | B | 0 | 0.61 | -0.61 | -10.1 | 0.61 | -0.61 | -12.2 |
| 1267.4 | 1256.8 | 20 | 20 | Van Der Walt, JHT (Jean Hendrik T) | | NBR | 1229.1 | 1219.4 | Laerskool Rustenburg 2019 (U12) | 4 | 2019-08-17 | S | B | 1 | 0.5 | 0.5 | 8.3 | 0.5 | 0.5 | 10 |
| 1180.1 | 1171.4 | 20 | 20 | Van Der Walt, JHT (Jean Hendrik T) | | NBR | 1231.8 | 1226.3 | Hoerskool Rustenburg Skaak 2019 (U12) | 4 | 2019-04-13 | S | B | 1 | 0.4 | 0.6 | 10 | 0.39 | 0.61 | 12.2 |
| 1153.6 | 1143.2 | 20 | 20 | Van Der Walt, JHT (Jean Hendrik T) | | NBR | 1207.8 | 1208.7 | Fields College Open 2019 (U12) | 4 | 2019-02-02 | S | W | 0 | 0.48 | -0.48 | -8 | 0.47 | -0.47 | -9.4 |
| 866.7 | 872.4 | 20 | 20 | Van Der Walt, JHT (Jean Hendrik T) | | NBR | 901.2 | 905.4 | Inter Regional 2018 (U12 Team) | 5 | 2018-05-05 | S | B | 0 | 0.42 | -0.42 | -7 | 0.42 | -0.42 | -8.4 |
| 768 | 768 | 20 | 20 | Van Der Walt, Jht (Jean Hendrik T) | | NBR | 762 | 762 | Bojanala Primary School League 2017 (U9A) | 3 | 2017-08-05 | S | B | 0 | 0.51 | -0.51 | -8.5 | -0.51 | 0.51 | 10.2 |
| 794 | 794 | 20 | 20 | Van Der Walt, Jht (Jean Hendrik T) | | NBR | 792 | 792 | 2017 Laerskool Rustenburg (Section C) | 1 | 2017-07-29 | S | B | 0 | 0.5 | -0.5 | -8.3 | -0.5 | 0.5 | 10 |
| 527 | 527 | 20 | 20 | Van Der Walt, Jht (Jean Hendrik T) | | NBR | 673 | 673 | Vastrap 2017 (D) | 5 | 2017-02-11 | S | B | 1 | 0.3 | 0.7 | 11.6 | 0.7 | 0.3 | 6 |
| 527 | 527 | 20 | 20 | Van Der Walt, Jht (Jean Hendrik T) | | NBR | 673 | 673 | Registration Tournament 2017 (U10) | 4 | 2017-01-27 | S | W | 0 | 0.3 | -0.3 | -5 | -0.3 | 0.3 | 6 |
| 0 | 0 | 20 | 20 | Van Der Walt, Jht (Jean Hendrik T) | | NBR | 616 | 616 | 2015 Fields Chess Tournament (Under 8 (Born 2008 2009) | 4 | 2015-08-15 | S | W | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
