| 1393.7 | 1382.2 | 20 | 20 | Van Der Merwe, P (Phillip) | | GSV | 1203.8 | 1165.5 | Fonteine Chess Open 2023 (LSEN) | 4 | 2023-09-02 | S | W | 1 | 0.76 | 0.24 | 4 | 0.79 | 0.21 | 4.2 |
| 1354.4 | 1367.5 | 20 | 20 | Van Der Merwe, P (Phillip) | | GSV | 1150.9 | 1147.2 | Valia's Chess Tournament 2023 (LSEN) | 1 | 2023-05-06 | S | W | 1 | 0.78 | 0.22 | 3.7 | 0.8 | 0.2 | 4 |
| 1254.8 | 1266.6 | 20 | 20 | Van Der Merwe, P (Phillip) | | GSV | 1073.2 | 1061.4 | Hoerskool Drie Riviere Open 2023 (F) | 4 | 2023-03-11 | S | B | 1 | 0.67 | 0.33 | 5.5 | 0.7 | 0.3 | 6 |
| 1182.5 | 1181.3 | 20 | 20 | Van Der Merwe, P (Phillip) | | GSV | 1025.7 | 999.4 | Laerkool Midvaal Chess Open 2023 (LSEN) | 4 | 2023-01-28 | S | W | 1 | 0.72 | 0.28 | 4.6 | 0.75 | 0.25 | 5 |
| 1167.1 | 1165.6 | 20 | 20 | Van Der Merwe, P (Phillip) | | GSV | 1104.2 | 1100.6 | LS Vryheidsmonument Chess Open 2022 (LSEN) | 2 | 2022-05-07 | S | W | 0 | 0.61 | -0.61 | -10.1 | 0.62 | -0.62 | -12.4 |
| 1131.5 | 1116.3 | 20 | 20 | Van Der Merwe, P (Phillip) | | GSV | 806.8 | 857.6 | Lux Deo NG Kerk Chess Open 2022 (LSEN) | 3 | 2022-04-09 | S | B | 1 | 0.84 | 0.16 | 2.7 | 0.76 | 0.24 | 4.8 |
| 1195.4 | 1197.4 | 20 | 20 | Van Der Merwe, P (Phillip) | | GSV | 697.2 | 737.6 | Hoerskool Drie Riviere 2020 (LSEN) | 1 | 2020-03-07 | S | W | 1 | 1 | 0 | 0 | 1 | 0 | 0 |
| 1149.6 | 1176 | 20 | 20 | Van Der Merwe, P (Phillip) | | GSV | 598.6 | 618.8 | Eureka LSEN Skaak/Chess 2019 (B) | 2 | 2019-10-09 | S | W | 1 | 1 | 0 | 0 | 1 | 0 | 0 |
| 500 | 500 | 20 | 20 | Van Der Merwe, P (Phillip) | | GSV | 500 | 500 | Carels Open Chess Tournament 2017 (E-Lsen) | 4 | 2017-03-04 | S | W | 1 | 0.5 | 0.5 | 8.3 | 0.5 | 0.5 | 10 |
