| 1415.3 | 1401.4 | 20 | 20 | Joubert, N (Natasha) | WCM | WCT | 1556.4 | 1557.7 | Western Cape Schools Chess 2022 (U18 Girls) | 4 | 2022-05-07 | S | W | 1 | 0.38 | 0.62 | 10.5 | 0.36 | 0.64 | 12.8 |
| 1342 | 1331.6 | 20 | 20 | Joubert, N (Natasha) | WCM | WCT | 1341 | 1318.9 | 2019 National Club Chess Championships (B) | 3 | 2019-09-28 | S | W | 0.5 | 0.54 | -0.04 | -0.8 | 0.56 | -0.06 | -1.2 |
| 1279.2 | 1271.8 | 20 | 20 | Joubert, N (Natasha) | WCM | WCT | 1307 | 1309.9 | Metro School Chess Closed Individual Trials 2019 (U15 Girls) | 5 | 2019-03-02 | S | W | 0 | 0.51 | -0.51 | -8.5 | 0.5 | -0.5 | -10 |
| 1273.5 | 1261.7 | 20 | 20 | Joubert, N (Natasha) | WCM | WCT | 1213 | 1210.9 | 2018 WP Schools Closed Trials (U13 Girls) | 4 | 2018-03-10 | S | B | 1 | 0.53 | 0.47 | 7.8 | 0.52 | 0.48 | 9.6 |
| 860 | 860 | 20 | 20 | Joubert, N (Natasha) | WCM | WP | 1017 | 1017 | Wp Schools Closed 2017 (U13 Girls) | 6 | 2017-03-11 | S | B | 0 | 0.29 | -0.29 | -4.8 | -0.29 | 0.29 | 5.8 |
| 973 | 973 | 20 | 20 | Joubert, N (Natasha) | WCM | WP | 1090 | 1090 | Sa Junior Closed Chess Championship 2016 (U12 Girls) | 9 | 2016-03-24 | S | B | 0 | 0.34 | -0.34 | -6.8 | -0.34 | 0.34 | 6.8 |
| 973 | 973 | 20 | 20 | Joubert, N (Natasha) | WCM | WP | 1090 | 1090 | Wp Schools Chess Trials 2016 (U11 Girls) | 5 | 2016-03-05 | S | W | 1 | 0.34 | 0.66 | 11 | 0.66 | 0.34 | 6.8 |
| 988 | 988 | 20 | 20 | Joubert, N (Natasha) | WCM | WP | 1170 | 1170 | Wp Open 2016 (C) | 6 | 2016-02-26 | S | W | 0 | 0.26 | -0.26 | -4.5 | -0.26 | 0.26 | 5.2 |
| 988 | 988 | 20 | 20 | Joubert, N (Natasha) | WCM | WP | 1170 | 1170 | Wp Open 2016 (C) | 6 | 2016-02-26 | S | W | 0 | 0.26 | -0.26 | -4.5 | -0.26 | 0.26 | 5.2 |
| 910 | 910 | 20 | 20 | Joubert, N (Natasha) | WCM | WP | 1144 | 1144 | South African Womens Open 2015 (A) | 5 | 2015-09-27 | S | W | 1 | 0.21 | 0.79 | 14.9 | 0.79 | 0.21 | 4.2 |
| 880 | 880 | 20 | 20 | Joubert, N (Natasha) | | WP | 1129 | 1129 | Sa School Individual Chess Championship 2014 U9 Gi | 2 | 2014-07-10 | S | W | 0 | 0.19 | -0.19 | -3.6 | -0.19 | 0.19 | 3.8 |
| 0 | 0 | 20 | 20 | Joubert, N (Natasha) | | WP | 1007 | 1007 | Western Cape School Chess Tournament 2014 U 10 G | 3 | 2014-05-02 | S | W | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 0 | 0 | 20 | 20 | Joubert, N (Natasha) | | WP | 1086 | 1086 | Wp Individual Championships (Under 10 Girls) | 2 | 2014-03-28 | S | B | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
