| 1573.3 | 1572.8 | 20 | 20 | Jonker, K (Keola) | | GJM | 1431.8 | 1426.4 | JNW Club - Trinityhouse Randpark Ridge Open 2020 (A) | 4 | 2020-02-22 | S | B | 1 | 0.62 | 0.38 | 6.3 | 0.63 | 0.37 | 7.4 |
| 1539.4 | 1526.6 | 20 | 20 | Jonker, K (Keola) | | GJM | 1514.1 | 1522.1 | JNW Chess Club - Muldersdrif 2019 (A) | 4 | 2019-10-18 | S | W | 1 | 0.57 | 0.43 | 7.1 | 0.55 | 0.45 | 9 |
| 1439.2 | 1435.5 | 20 | 20 | Jonker, K (Keola) | | GJM | 1376.3 | 1374.7 | JHB Metro Closed 2019 (Open) | 4 | 2019-07-28 | S | W | 0.5 | 0.61 | -0.11 | -2.1 | 0.61 | -0.11 | -2.2 |
| 1460.8 | 1457.8 | 20 | 20 | Jonker, K (Keola) | | GJM | 1345.4 | 1336 | 2019 South African Junior Closed Chess Championship (U16 Girls) | 6 | 2019-03-19 | S | W | 0 | 0.68 | -0.68 | -13.6 | 0.68 | -0.68 | -13.6 |
| 1270 | 1270 | 20 | 20 | Jonker, K (Keola) | | GJM | 1178 | 1178 | Jnw Club - Maragon Open 2017 (B) | 5 | 2017-06-03 | S | B | 0 | 0.63 | -0.63 | -10.7 | -0.63 | 0.63 | 12.6 |
| 1230 | 1230 | 20 | 20 | Jonker, K (Keola) | | GJM | 1002 | 1002 | Sa Junior Closed Chess Championship 2017 (U14 Girls) | 1 | 2017-04-05 | S | B | 1 | 0.79 | 0.21 | 4.2 | 0.21 | 0.79 | 15.8 |
| 1282 | 1282 | 20 | 20 | Jonker, K (Keola) | | GJM | 1088 | 1088 | Sa Junior Closed Chess Championship 2016 (U14 Girls) | 1 | 2016-03-20 | S | W | 0 | 0.75 | -0.75 | -15 | -0.75 | 0.75 | 15 |
| 1287 | 1287 | 20 | 20 | Jonker, K (Keola) | | GJM | 1099 | 1099 | Sa Junior Closed Chess Championship 2015 (Under 12 Girls) | 10 | 2015-04-09 | S | B | 1 | 0.74 | 0.26 | 5.2 | 0.26 | 0.74 | 14.8 |
| 875 | 875 | 20 | 20 | Jonker, K (Keola) | | GW | 818 | 818 | Trinityhouse Open (C) | 5 | 2013-04-20 | S | B | 0 | 0.58 | -0.58 | -9.9 | -0.58 | 0.58 | 11.6 |
| 875 | 875 | 20 | 20 | Jonker, K (Keola) | | GW | 818 | 818 | South African Junior Closed 2013 U10 Girls | 10 | 2013-04-06 | S | W | 1 | 0.58 | 0.42 | 8.4 | 0.42 | 0.58 | 11.6 |
| 748 | 748 | 20 | 20 | Jonker, K (Keola) | | GW | 761 | 761 | Wild Card Championship 2012 (U10 Girls) | 7 | 2012-12-21 | S | W | 1 | 0.48 | 0.52 | 8.6 | 0.52 | 0.48 | 9.6 |
| 713 | 713 | 20 | 20 | Jonker, K (K) | | GW | 755 | 755 | Gauteng West Open - U10 | 5 | 2012-06-03 | S | B | 1 | 0.44 | 0.56 | 9.5 | 0.56 | 0.44 | 8.8 |
