| 1909.7 | 1912.2 | 24 | 24 | Selkirk, RJ (Rebecca Joy) | WCM | WCW | 1768.1 | 1776.9 | Moja Chess Extravaganza 2026 (Ladies) | 9 | 2026-04-30 | S | W | 0 | 0.71 | -0.71 | -17 | 0.7 | -0.7 | -16.8 |
| 1747.6 | 1746.1 | 20 | 20 | Selkirk, RJ (Rebecca) | WCM | WCW | 1691 | 1677.2 | CW Top Schools 2023 (Elite) | 5 | 2023-08-13 | S | W | 0 | 0.61 | -0.61 | -11.5 | 0.62 | -0.62 | -12.4 |
| 1709.9 | 1702.1 | 20 | 20 | Selkirk, RJ (Rebecca) | WCM | WCW | 1760.7 | 1760.9 | 2022 South African Closed Chess Championships (Women) | 5 | 2022-05-12 | S | B | 0 | 0.4 | -0.4 | -8 | 0.39 | -0.39 | -7.8 |
| 1799.8 | 1797.7 | 20 | 20 | Selkirk, RJ (Rebecca) | WCM | WCW | 1785.6 | 1797.1 | 2019 South African Closed Chess Championships (Women A) | 9 | 2019-12-15 | S | W | 1 | 0.56 | 0.44 | 8.8 | 0.54 | 0.46 | 9.2 |
| 1933.2 | 1933.2 | 20 | 20 | Selkirk, RJ (Rebecca) | WCM | WCW | 1752.1 | 1786.3 | Western Cape Women`s Open 2019 (Prestige) | 5 | 2019-03-10 | S | B | 0.5 | 0.67 | -0.17 | -3 | 0.63 | -0.13 | -2.6 |
| 1843 | 1843 | 20 | 20 | Selkirk, Rj (Rebecca) | | EBC | 1721 | 1721 | 2017 Western Province League (Premier) | 8 | 2017-09-02 | S | B | 0 | 0.67 | -0.67 | -13.4 | -0.67 | 0.67 | 13.4 |
| 2010 | 2010 | 20 | 20 | Selkirk, Rj (Rebecca) | | EBC | 1679 | 1679 | Cape Town Heritage Chess Festival 2017 (Ladies And Youth) | 3 | 2017-03-26 | R | B | 0.5 | 0.88 | -0.38 | -4.1 | -0.38 | 0.88 | 17.6 |
| 1913 | 1913 | 20 | 20 | Selkirk, Rj (Rebecca) | | EBC | 1681 | 1681 | South African Closed 2014 (Women A) | 4 | 2014-01-06 | S | W | 1 | 0.79 | 0.21 | 4.2 | 0.21 | 0.79 | 15.8 |
