| 1412.7 | 1437.7 | 20 | 20 | Van Nieuwenhuizen, J (Jacques) | | GSV | 1344.9 | 1341.4 | HS Driehoek Chess Open 2025 (C) | 5 | 2025-06-14 | S | B | 1 | 0.54 | 0.46 | 7.6 | 0.57 | 0.43 | 8.6 |
| 1505.3 | 1515.9 | 20 | 20 | Van Nieuwenhuizen, J (Jacques) | | GSV | 1301.3 | 1295.5 | Hoerskool Drie Riviere Open 08 March 2025 (C) | 4 | 2025-03-08 | S | W | 1 | 0.78 | 0.22 | 3.7 | 0.8 | 0.2 | 4 |
| 1345.8 | 1356.6 | 20 | 20 | Van Nieuwenhuizen, J (Jacques) | | GSV | 1319 | 1308.8 | Kings Gambit Chess Open 14 Sept 2024 (C) | 2 | 2024-09-14 | S | W | 1 | 0.57 | 0.43 | 7.1 | 0.6 | 0.4 | 8 |
| 1266.8 | 1200 | 20 | 20 | Van Nieuwenhuizen, J (Jacques) | | GSV | 1388.5 | 1200 | VaalPark Primary Open Chess 2023 (C) | 2 | 2023-06-16 | R | B | 1 | 0.32 | 0.68 | 10.1 | 0.46 | 0.54 | 10.8 |
| 1232.1 | 1235.5 | 20 | 20 | Van Nieuwenhuizen, J (Jacques) | | GSV | 1281.3 | 1289.2 | AG Visser Open 2023 (C) | 4 | 2023-02-18 | S | B | 0 | 0.4 | -0.4 | -6.6 | 0.4 | -0.4 | -8 |
