| 1917.5 | 1913.5 | 20 | 20 | Willenberg, KS (Kenneth Sean) | CM | WCT | 1992.2 | 1958.8 | Cape Town Chess Federation Club League 2025 (A) | 3 | 2025-08-16 | S | B | 1 | 0.37 | 0.63 | 12.6 | 0.41 | 0.59 | 11.8 |
| 1936.6 | 1922.6 | 20 | 20 | Willenberg, KS (Kenneth) | CM | WCT | 1934.3 | 1932.9 | 2022 Western Province Club League (Premier) | 6 | 2022-09-03 | S | B | 0.5 | 0.46 | 0.04 | 0.8 | 0.45 | 0.05 | 1 |
| 1940.7 | 1926.2 | 20 | 20 | Willenberg, KS (Kenneth) | CM | WCT | 2024.6 | 2010.3 | Western Cape Club Championships 2021 (A) | 3 | 2021-10-16 | S | B | 0 | 0.36 | -0.36 | -6.1 | 0.36 | -0.36 | -7.2 |
| 1941.4 | 1941.8 | 20 | 20 | Willenberg, KS (Kenneth) | CM | WCT | 1942.9 | 1985.8 | 2019 GPCA Rapid (Open) | 3 | 2019-06-29 | R | W | 0 | 0.54 | -0.54 | -5.1 | 0.49 | -0.49 | -9.8 |
| 1933.4 | 1937.2 | 20 | 20 | Willenberg, KS (Kenneth) | CM | WCT | 1974.3 | 2038.4 | Graham Solomon Memorial 2018 (Rapid) | 4 | 2018-11-24 | R | B | 0.5 | 0.41 | 0.09 | 1.1 | 0.34 | 0.16 | 3.2 |
| 1933.4 | 1937.2 | 20 | 20 | Willenberg, KS (Kenneth) | CM | WCT | 1974.3 | 2052 | Graham Solomon Memorial 2018 (Blitz) | 8 | 2018-11-25 | B | B | 1 | 0.41 | 0.59 | 2.9 | 0.32 | 0.68 | 13.6 |
| 1862 | 1862 | 20 | 20 | Willenberg, Ks (Kenneth) | | WP | 1937 | 1937 | 2017 Western Province League (Premier) | 7 | 2017-09-02 | S | W | 0 | 0.4 | -0.4 | -8 | -0.4 | 0.4 | 8 |
| 1458 | 1458 | 20 | 20 | Willenberg, Ks (Kenneth) | | WP | 2085 | 2085 | Western Province Individual Blitz Championship 15 | 6 | 2015-01-31 | B | B | 1 | 0.01 | 0.99 | 3.6 | 0.99 | 0.01 | 0.2 |
| 1545 | 1545 | 20 | 20 | Willenberg, Ks (Kenneth) | | WP | 2046 | 2046 | National Club Championships 2012 Swellendam | 1 | 2012-09-22 | S | B | 0 | 0.06 | -0.06 | -1 | -0.06 | 0.06 | 1.2 |
