| 2054.4 | 2101.6 | 20 | 20 | Klaasen, CJ (Calvin) | FM | WCT | 2162.4 | 2190.3 | WP Club League 2023 (A) | 3 | 2023-08-05 | S | B | 0 | 0.33 | -0.33 | -6.6 | 0.35 | -0.35 | -7 |
| 2067.6 | 2111.6 | 20 | 20 | Klaasen, CJ (Calvin) | FM | WCT | 2189.1 | 2197.8 | 2022 Western Province Club League (Premier) | 3 | 2022-08-27 | S | B | 0.5 | 0.32 | 0.18 | 3.6 | 0.36 | 0.14 | 2.8 |
| 2063.3 | 2111.4 | 20 | 20 | Klaasen, CJ (Calvin) | FM | WCT | 2197 | 2209.8 | 2020 Western Province Open (Championship) | 4 | 2020-03-08 | S | W | 0 | 0.39 | -0.39 | -6.8 | 0.43 | -0.43 | -8.6 |
| 2063 | 2112 | 20 | 20 | Klaasen, CJ (Calvin) | FM | WCT | 2243.8 | 2255.8 | 2019 Western Province League (Premier) | 7 | 2019-08-17 | S | B | 0 | 0.25 | -0.25 | -5 | 0.29 | -0.29 | -5.8 |
| 2057.9 | 2112 | 20 | 20 | Klaasen, CJ (Calvin) | FM | WCT | 2256.6 | 2261.2 | 2019 Elsies River Open (Elite) | 3 | 2019-06-22 | S | W | 1 | 0.31 | 0.69 | 12 | 0.37 | 0.63 | 12.6 |
| 2102.1 | 2148.2 | 20 | 20 | Klaasen, CJ (Calvin) | FM | WCT | 2261.3 | 2273 | Cape of Good Hope Open 2019 (Elite) | 4 | 2019-01-26 | S | B | 1 | 0.27 | 0.73 | 12.7 | 0.31 | 0.69 | 13.8 |
| 2003 | 2003 | 20 | 20 | Klaasen, Cj (Calvin) | FM | WP | 2197 | 2197 | Steinitz Chess Festival 2017 (Elite) | 6 | 2017-04-16 | S | W | 0 | 0.25 | -0.25 | -5 | -0.25 | 0.25 | 5 |
| 2033 | 2033 | 20 | 20 | Klaasen, Cj (Calvin) | FM | WP | 2184 | 2184 | South African Open 2016 (A) | 10 | 2016-07-08 | S | W | 0.5 | 0.3 | 0.2 | 4 | 0.2 | 0.3 | 6 |
| 2020 | 2020 | 20 | 20 | Klaasen, Cj (Calvin) | FM | WP | 2113 | 2113 | South African Open 2015 (A) | 10 | 2015-07-10 | S | B | 0.5 | 0.37 | 0.13 | 2.6 | 0.13 | 0.37 | 7.4 |
| 1986 | 1986 | 20 | 20 | Klaasen, Cj (Calvin) | FM | WP | 2147 | 2147 | Cape Of Good Hope Open Prestige Section | 5 | 2015-01-25 | S | W | 1 | 0.29 | 0.71 | 11.8 | 0.71 | 0.29 | 5.8 |
