| 1465.4 | 1475 | 20 | 20 | Lefyedi, T (Thatego) | | NBR | 1726.2 | 1718.2 | 2022 South African Junior Team Chess Championships (U18 Open) | 6 | 2022-12-07 | S | W | 0.5 | 0.24 | 0.26 | 5.2 | 0.26 | 0.24 | 4.8 |
| 1358.2 | 1356.8 | 20 | 20 | Lefyedi, T (Thatego) | | NBR | 1617.4 | 1605.3 | 2022 North West Schools Individuals (U18 Boys) | 3 | 2022-06-04 | S | W | 0.5 | 0.24 | 0.26 | 4.3 | 0.25 | 0.25 | 5 |
| 1385.5 | 1380.9 | 20 | 20 | Lefyedi, T (Thatego) | | NBR | 1551.8 | 1560.1 | Doringkruin 2019 (U16) | 4 | 2019-09-07 | S | W | 0 | 0.35 | -0.35 | -5.8 | 0.33 | -0.33 | -6.6 |
| 1229.2 | 1228.4 | 20 | 20 | Lefyedi, T (Thatego) | | NBR | 1498.4 | 1501.8 | Inter Regional Chess Championship 2019 (U16) | 5 | 2019-05-11 | S | W | 0 | 0.23 | -0.23 | -3.8 | 0.22 | -0.22 | -4.4 |
| 1178 | 1168.7 | 20 | 20 | Lefyedi, T (Thatego) | | NBR | 1496.8 | 1501.2 | Hoerskool Rustenburg Skaak 2019 (U16) | 3 | 2019-04-13 | S | W | 0 | 0.17 | -0.17 | -2.8 | 0.15 | -0.15 | -3 |
| 1304.1 | 1300.5 | 20 | 20 | Lefyedi, T (Thatego) | | NBR | 1528.2 | 1530.6 | Rustenburg Noord Primary Tournament 2019 (A) | 5 | 2019-02-09 | S | W | 0 | 0.28 | -0.28 | -4.6 | 0.27 | -0.27 | -5.4 |
| 1304.1 | 1300.5 | 20 | 20 | Lefyedi, T (Thatego) | | NBR | 1528.2 | 1530.6 | Laerskool Vastrap Tournament 2019 (A) | 2 | 2019-02-23 | S | W | 0 | 0.28 | -0.28 | -4.6 | 0.27 | -0.27 | -5.4 |
| 1177.5 | 1181.9 | 20 | 20 | Lefyedi, T (Thatego) | | NBR | 1348.3 | 1348.3 | Bojanala Regionals 2018 (U14) | 4 | 2018-09-15 | S | B | 0 | 0.26 | -0.26 | -4.3 | 0.26 | -0.26 | -5.2 |
| 1009.4 | 1005.8 | 20 | 20 | Lefyedi, T (Thatego) | | NBR | 1290.1 | 1292.5 | Laerskool Rustenburg 2018 (A) | 2 | 2018-03-24 | S | B | 0 | 0.13 | -0.13 | -2.2 | 0.12 | -0.12 | -2.4 |
| 991 | 991 | 20 | 20 | Lefyedi, T (Thatego) | | NBR | 1249 | 1249 | Moses Kotane Chess Club Tournament 2017 (B) | 2 | 2017-12-02 | S | W | 0 | 0.18 | -0.18 | -3 | -0.18 | 0.18 | 3.6 |
| 930 | 930 | 20 | 20 | Lefyedi, T (Thatego) | | NBR | 1211 | 1211 | Laerskool Rustenburg Noord Primary 2017 (U14) | 5 | 2017-08-11 | S | W | 0 | 0.16 | -0.16 | -2.7 | -0.16 | 0.16 | 3.2 |
| 899 | 899 | 20 | 20 | Lefyedi, T (Thatego) | | NBR | 1089 | 1089 | Proteapark Chess 2017 (U14) | 3 | 2017-04-22 | S | B | 0 | 0.25 | -0.25 | -4.1 | -0.25 | 0.25 | 5 |
| 861 | 861 | 20 | 20 | Lefyedi, T (Thatego) | | NBR | 1215 | 1215 | Registration Tournament 2017 (U14) | 3 | 2017-01-27 | S | W | 0 | 0.11 | -0.11 | -1.8 | -0.11 | 0.11 | 2.2 |
