| 1570 | 1568 | 20 | 20 | Nortman, WJ (Wilhelmus Johan) | | NBR | 1277.7 | 1268.2 | Schoemies Kings & Queens 2023 (Rooks) | 1 | 2023-03-18 | S | B | 1 | 0.8 | 0.2 | 3.3 | 0.81 | 0.19 | 3.8 |
| 1362.9 | 1347 | 20 | 20 | Nortman, WJ (Wilhelmus Johan) | | NBR | 1248.1 | 1222.5 | One For The Ages 2022 (U12) | 4 | 2022-07-16 | S | B | 1 | 0.59 | 0.41 | 6.8 | 0.6 | 0.4 | 8 |
| 1422.6 | 1413.3 | 20 | 20 | Nortman, WJ (Wilhelmus Johan) | | NBR | 1312.3 | 1298.4 | Laerskool Proteapark 2020 (B) | 1 | 2020-02-29 | S | W | 1 | 0.67 | 0.33 | 5.5 | 0.68 | 0.32 | 6.4 |
| 1379.7 | 1358.4 | 20 | 20 | Nortman, WJ (Wilhelmus Johan) | | NBR | 1374.7 | 1359.6 | Inter Region 2019 (U10 Open) | 4 | 2019-10-19 | S | W | 1 | 0.55 | 0.45 | 7.5 | 0.54 | 0.46 | 9.2 |
| 1211.9 | 1201.2 | 20 | 20 | Nortman, WJ (Wilhelmus Johan) | | NBR | 1259.3 | 1240.6 | Grenville 2019 (U10) | 4 | 2019-06-08 | S | B | 1 | 0.4 | 0.6 | 10 | 0.41 | 0.59 | 11.8 |
| 1097.5 | 1062.2 | 20 | 20 | Nortman, WJ (Wilhelmus Johan) | | NBR | 1256.1 | 1228.4 | 2019 South African Junior Closed Chess Championship (U8 Open) | 2 | 2019-03-17 | S | B | 0 | 0.27 | -0.27 | -5.4 | 0.26 | -0.26 | -5.2 |
| 1187.7 | 1171.6 | 20 | 20 | Nortman, WJ (Wilhelmus Johan) | | NBR | 1354.1 | 1343.6 | Rustenburg Noord Primary Tournament 2019 (U10) | 3 | 2019-02-09 | S | B | 1 | 0.26 | 0.74 | 12.3 | 0.26 | 0.74 | 14.8 |
| 1187.7 | 1171.6 | 20 | 20 | Nortman, WJ (Wilhelmus Johan) | | NBR | 1354.1 | 1343.6 | Laerskool Vastrap Tournament 2019 (D) | 2 | 2019-02-23 | S | B | 0 | 0.26 | -0.26 | -4.3 | 0.26 | -0.26 | -5.2 |
| 1320 | 1322.4 | 20 | 20 | Nortman, WJ (Wilhelmus Johan) | | NBR | 1289.4 | 1296.6 | Bojanala Regionals 2018 (U8) | 3 | 2018-09-15 | S | W | 1 | 0.58 | 0.42 | 7 | 0.57 | 0.43 | 8.6 |
| 1330.5 | 1337.2 | 20 | 20 | Nortman, WJ (Wilhelmus Johan) | | NBR | 1222 | 1225 | Laerskool Brits Tournament 2018 (U8) | 2 | 2018-08-04 | S | W | 0 | 0.67 | -0.67 | -11.1 | 0.67 | -0.67 | -13.4 |
| 1207 | 1205.2 | 20 | 20 | Nortman, WJ (Wilhelmus Johan) | | NBR | 1246.5 | 1256 | Laerskool Olienpark 2018 (U8) | 3 | 2018-04-21 | S | B | 0 | 0.41 | -0.41 | -6.8 | 0.4 | -0.4 | -8 |