| 1630.1 | 1609 | 28 | 28 | Botha, J (Johannes Cornelis) | | NBR | 1630.9 | 1630.2 | Bojanala's Die Rooi Masjien 2026 (Bishops) | 4 | 2026-06-06 | S | B | 0.5 | 0.46 | 0.04 | 1 | 0.43 | 0.07 | 1.9 |
| 1598.3 | 1228.9 | 32 | 36 | Botha, J (Johannes Cornelis) | | NBR | 1713.1 | 1318.1 | South African Junior Closed Chess Championship 2026 (Blitz) | 5 | 2026-03-31 | B | B | 1 | 0.32 | 0.68 | 3.9 | 0.35 | 0.65 | 23.2 |
| 1492.5 | 1499.8 | 20 | 20 | Botha, J (Johannes Cornelis) | | NBR | 1590.4 | 1594.5 | Bojanala Closed Chess Championships 2026 (U16) | 4 | 2026-02-14 | S | B | 0.5 | 0.34 | 0.16 | 3.2 | 0.35 | 0.15 | 3 |
| 1495 | 1490.7 | 20 | 20 | Botha, J (Johannes Cornelis) | | NBR | 1550.4 | 1524.4 | Bojanala's Circuit Championships 4 of 4 2025 (U16) | 4 | 2025-11-01 | S | W | 0.5 | 0.48 | 0.02 | 0.3 | 0.5 | 0 | 0 |
| 1462.4 | 1466.3 | 20 | 20 | Botha, J (Johannes Cornelis) | | NBR | 1566.2 | 1563.9 | Bojanala Circuit Championship 1 of 4 2024 (U14) | 5 | 2024-05-25 | S | B | 0 | 0.34 | -0.34 | -5.6 | 0.34 | -0.34 | -6.8 |
| 1342.9 | 1335.2 | 20 | 20 | Botha, J (Johannes Cornelis) | | NBR | 1436.2 | 1428.7 | Bojanala's Post-Exams 2023 (Rooks) | 2 | 2023-06-24 | S | W | 0 | 0.43 | -0.43 | -7.1 | 0.43 | -0.43 | -8.6 |
| 1315.4 | 1301.3 | 20 | 20 | Botha, J (Johannes Cornelis) | | NBR | 1442.6 | 1433.5 | Grenswag's Community Battle 2023 (Rooks) | 3 | 2023-04-22 | S | B | 0 | 0.31 | -0.31 | -5.1 | 0.3 | -0.3 | -6 |
| 1185.1 | 1178.8 | 20 | 20 | Botha, J (Johannes Cornelis) | | NBR | 1214.4 | 1215.2 | Lebone II 2022 (D) | 3 | 2022-02-12 | S | B | 0 | 0.42 | -0.42 | -7.1 | 0.42 | -0.42 | -8.4 |
