| 1644.7 | 1639.1 | 20 | 20 | Mazibuko, K (Khanya) | CM | GJM | 1937.5 | 1935.7 | 2019 Gauteng School League Finals (U19 Open) | 4 | 2019-08-24 | S | W | 0 | 0.2 | -0.2 | -3.3 | 0.2 | -0.2 | -4 |
| 1639.8 | 1650.8 | 20 | 20 | Mazibuko, K (Khanya) | CM | GJM | 1940.6 | 1943.5 | 2019 South African Junior Closed Chess Championship (U18 Open) | 5 | 2019-03-19 | S | W | 0 | 0.19 | -0.19 | -3.8 | 0.2 | -0.2 | -4 |
| 1595.3 | 1570.4 | 20 | 20 | Mazibuko, K (Khanya) | CM | GJM | 1951 | 1888.8 | South African Junior Blitz 2018 (U18) | 6 | 2018-12-19 | B | W | 0 | 0.13 | -0.13 | -0.5 | 0.17 | -0.17 | -3.4 |
| 1636.3 | 1636.3 | 20 | 20 | Mazibuko, K (Khanya) | CM | GJM | 1912.8 | 1912.8 | 2018 Tshwane Registration Open Chess Tournament (A) | 1 | 2018-01-27 | S | W | 0 | 0.22 | -0.22 | -3.7 | 0.22 | -0.22 | -4.4 |
| 1590 | 1590 | 20 | 20 | Mazibuko, K (Khanya) | CM | GTP | 1827 | 1827 | 2017 Alekhine (A) | 3 | 2017-08-05 | S | W | 0 | 0.2 | -0.2 | -3.8 | -0.2 | 0.2 | 4 |
| 1610 | 1610 | 20 | 20 | Mazibuko, K (Khanya) | CM | GTP | 1798 | 1798 | Sa Junior Closed Chess Championship 2017 (U16 Open) | 5 | 2017-04-07 | S | W | 0 | 0.26 | -0.26 | -5.2 | -0.26 | 0.26 | 5.2 |
| 1625 | 1625 | 20 | 20 | Mazibuko, K (Khanya) | CM | GTP | 1854 | 1854 | 2017 Wynie Robbertse Chess Tournament (A+B) | 3 | 2017-02-25 | S | B | 0 | 0.21 | -0.21 | -3.5 | -0.21 | 0.21 | 4.2 |
| 1578 | 1578 | 20 | 20 | Mazibuko, K (Khanya) | CM | GJM | 1902 | 1902 | South African Junior Team Championships 2016 (U16 A) | 5 | 2016-12-18 | S | W | 0.5 | 0.13 | 0.37 | 7.4 | 0.37 | 0.13 | 2.6 |
| 1511 | 1511 | 20 | 20 | Mazibuko, K (Khanya) | | GJM | 1653 | 1653 | 2016 Gauteng Secondary School Individual Provincial (U15B) | 4 | 2016-05-13 | S | B | 0 | 0.31 | -0.31 | -5.1 | -0.31 | 0.31 | 6.2 |
| 1481 | 1481 | 20 | 20 | Mazibuko, K (Khanya) | | GJM | 1592 | 1592 | Jnw Chess - Franklin D Roosevelt Open 2016 (A) | 2 | 2016-03-11 | S | W | 0 | 0.35 | -0.35 | -6 | -0.35 | 0.35 | 7 |
| 1405 | 1405 | 20 | 20 | Mazibuko, K (Khanya) | | GJM | 1578 | 1578 | Jnw Chess Bryanston Open 2015 (Section A) | 2 | 2015-05-09 | S | B | 0 | 0.27 | -0.27 | -4.6 | -0.27 | 0.27 | 5.4 |
| 1483 | 1483 | 20 | 20 | Mazibuko, K (Khanya) | | GJM | 1470 | 1470 | Sa Junior Closed Chess Championship 2015 (Under 14 Open) | 6 | 2015-04-07 | S | W | 0 | 0.52 | -0.52 | -10.4 | -0.52 | 0.52 | 10.4 |
