| 1510.1 | 1507 | 20 | 20 | Claassen, J (Jean-Daniel) | | GTP | 1707.8 | 1715.7 | Chris Greyling Open Tournament 2023 (A) | 2 | 2023-03-21 | S | B | 0 | 0.23 | -0.23 | -3.8 | 0.22 | -0.22 | -4.4 |
| 1501.8 | 1497.8 | 20 | 20 | Claassen, J (Jean-Daniel) | | GTP | 1667.7 | 1667.8 | 2021 CCC Inhouse (A) | 5 | 2021-11-17 | S | B | 0 | 0.27 | -0.27 | -4.5 | 0.26 | -0.26 | -5.2 |
| 1384.4 | 1390.5 | 20 | 20 | Claassen, J (Jean-Daniel) | | GTP | 1601.7 | 1606.2 | 2019 Constantia Park Open (A) | 5 | 2019-02-09 | S | W | 0 | 0.29 | -0.29 | -4.8 | 0.29 | -0.29 | -5.8 |
| 1190.4 | 1190.4 | 20 | 20 | Claassen, J (Jean-Daniel) | | GTP | 1383.7 | 1383.7 | 2018 Piet Robbertse Chess Tournament (Prestige) | 1 | 2018-02-02 | S | B | 0 | 0.23 | -0.23 | -4.6 | 0.23 | -0.23 | -4.6 |
| 1143 | 1143 | 20 | 20 | Claassen, J (Jean-Daniel) | | GTP | 1288 | 1288 | 2017 Tshwane Registration Tournament (C) | 1 | 2017-01-21 | S | W | 0 | 0.31 | -0.31 | -5.1 | -0.31 | 0.31 | 6.2 |
