| 1481.1 | 1478.3 | 20 | 20 | Lefyedi, T (Thatego) | | NBR | 1776.8 | 1778.9 | Bojanala SAJCC Trials 2022 (U18) | 4 | 2022-09-23 | S | W | 0 | 0.2 | -0.2 | -4 | 0.19 | -0.19 | -3.8 |
| 1458.5 | 1457.6 | 20 | 20 | Lefyedi, T (Thatego) | | NBR | 1617.4 | 1605.3 | 2022 North West Schools Individuals (U18 Boys) | 4 | 2022-06-04 | S | B | 0.5 | 0.27 | 0.23 | 3.8 | 0.29 | 0.21 | 4.2 |
| 1291.3 | 1287.3 | 20 | 20 | Lefyedi, T (Thatego) | | NBR | 1523.4 | 1534.2 | Laerskool Brits 2019 (U16) | 4 | 2019-08-31 | S | B | 0 | 0.19 | -0.19 | -3.2 | 0.17 | -0.17 | -3.4 |
| 1281.8 | 1293.9 | 20 | 20 | Lefyedi, T (Thatego) | | NBR | 1496.8 | 1501.2 | Laerskool Olienpark 2019 (A) | 4 | 2019-04-06 | S | W | 0 | 0.29 | -0.29 | -4.8 | 0.3 | -0.3 | -6 |
| 986.8 | 982.2 | 20 | 20 | Lefyedi, T (Thatego) | | NBR | 1348.3 | 1348.3 | Lebone II Chess 2018 (U14) | 3 | 2018-09-01 | S | W | 0 | 0.12 | -0.12 | -2 | 0.12 | -0.12 | -2.4 |
| 986.8 | 982.2 | 20 | 20 | Lefyedi, T (Thatego) | | NBR | 1348.3 | 1348.3 | Bojanala Regionals 2018 (U14) | 2 | 2018-09-15 | S | B | 0 | 0.04 | -0.04 | -0.7 | 0.03 | -0.03 | -0.6 |
| 1003.1 | 1005.4 | 20 | 20 | Lefyedi, T (Thatego) | | NBR | 1330.4 | 1332.5 | Laerskool Brits Tournament 2018 (U14) | 4 | 2018-08-04 | S | W | 0 | 0.16 | -0.16 | -2.7 | 0.16 | -0.16 | -3.2 |
| 862.8 | 859.2 | 20 | 20 | Lefyedi, T (Thatego) | | NBR | 1273.4 | 1273.4 | Laerskool Vastrap 2018 (U14) | 2 | 2018-02-03 | S | W | 0 | 0.06 | -0.06 | -1 | 0.06 | -0.06 | -1.2 |
| 698 | 698 | 20 | 20 | Lefyedi, T (Thatego) | | NBR | 1202 | 1202 | Bojanala Inter-Region 2017 (U14 Boys) | 4 | 2017-09-16 | S | B | 0 | 0.04 | -0.04 | -0.7 | -0.04 | 0.04 | 0.8 |
