| 2258.3 | 2270.9 | 20 | 20 | Karsten, JD (Jan Daniel) | IM | WCT | 2349.9 | 2361.6 | Cape Gambit Invitational 2025 | 7 | 2025-04-21 | S | B | 0.5 | 0.35 | 0.15 | 3 | 0.35 | 0.15 | 3 |
| 2258.3 | 2267.4 | 20 | 20 | Karsten, JD (Jan Daniel) | IM | WCT | 2349.9 | 1998.9 | Hermanus Chess Club Open 2025 (Championship) | 7 | 2025-04-12 | R | W | 0.5 | 0.44 | 0.06 | 0.6 | 0.85 | -0.35 | -7 |
| 2258.3 | 2321.8 | 20 | 20 | Karsten, JD (Jan Daniel) | IM | WCT | 2349.9 | 1712.2 | 2025 CT Chess Club Blitz Championship | 5 | 2025-03-19 | B | W | 1 | 0.44 | 0.56 | 2 | 1 | 0 | 0 |
| 2258.2 | 2266.9 | 20 | 20 | Karsten, JD (Jan) | IM | WCT | 2322.4 | 2341.8 | CT League 2024 (A) | 6 | 2024-08-17 | S | B | 0 | 0.38 | -0.38 | -7.6 | 0.37 | -0.37 | -7.4 |
| 2246.8 | 2260.7 | 20 | 20 | Karsten, JD (Jan) | IM | WCT | 2332.1 | 1887.8 | Hermanus Chess Club Open 2024 (Championship) | 3 | 2024-04-20 | R | B | 1 | 0.36 | 0.64 | 6 | 0.89 | 0.11 | 2.2 |
| 2246.8 | 2261.7 | 20 | 20 | Karsten, JD (Jan) | IM | WCT | 2332.1 | 2345.5 | South African Closed Chess Championship 2024 (Open) | 6 | 2024-03-29 | S | B | 0.5 | 0.36 | 0.14 | 2.8 | 0.36 | 0.14 | 2.8 |
| 2248 | 2257.4 | 20 | 20 | Karsten, JD (Jan) | IM | WCT | 2317.6 | 2326.2 | Cape Town Masters Challenge 2024 (Masters) | 7 | 2024-01-06 | S | W | 0 | 0.46 | -0.46 | -9.2 | 0.46 | -0.46 | -9.2 |
| 2248 | 2332.7 | 20 | 20 | Karsten, JD (Jan) | IM | WCT | 2317.6 | 1621.2 | Cape Town Chess Club Annual Blitz Championship 2024 | 6 | 2024-01-07 | B | W | 0.5 | 0.46 | 0.04 | 0.1 | 1 | -0.5 | -10 |
| 2243 | 2270.9 | 20 | 20 | Karsten, JD (Jan) | IM | WCT | 2131 | 1571.8 | Bonnievale Open Rapid 2023 (Championship) | 4 | 2023-10-21 | R | W | 1 | 0.67 | 0.33 | 3.6 | 1 | 0 | 0 |
| 2257.4 | 2281.2 | 20 | 20 | Karsten, JD (Jan) | IM | WCT | 2025.9 | 2025.2 | Cape Town Masters Challenge 2023 (IM Norm) | 6 | 2023-01-06 | S | W | 0.5 | 0.81 | -0.31 | -6.2 | 0.84 | -0.34 | -6.8 |
