| 1561.2 | 1242.3 | 28 | 36 | Botha, J (Johannes Cornelis) | | NBR | 1627.1 | 1458.2 | Bojanala's Kings & Queens 2026 (Open) | 6 | 2026-09-19 | B | B | 0.5 | 0.38 | 0.12 | 0.6 | 0.21 | 0.29 | 10.6 |
| 1561.2 | 1527.9 | 28 | 32 | Botha, J (Johannes Cornelis) | | NBR | 1627.1 | 1430.2 | Bojanala's Clash Of Schools 2026 (Open) | 2 | 2026-08-08 | R | B | 0 | 0.32 | -0.32 | -6.3 | 0.68 | -0.68 | -21.7 |
| 1378.1 | 1200 | 20 | 20 | Botha, J (Johannes Cornelis) | | NBR | 1520.4 | 1201.6 | Uni-Mates Chess Fundraiser Tournament 2025 (Blitz) | 2 | 2025-03-22 | B | B | 0 | 0.29 | -0.29 | -1.7 | 0.46 | -0.46 | -9.2 |
| 1241 | 1240.4 | 20 | 20 | Botha, J (Johannes Cornelis) | | NBR | 1627.8 | 1611.3 | Bojanala's Clash Of Schools 2024 (U13) | 1 | 2024-07-20 | S | B | 0 | 0.01 | -0.01 | -0.2 | 0.03 | -0.03 | -0.6 |
| 1220.7 | 1214.5 | 20 | 20 | Botha, J (Johannes Cornelis) | | NBR | 1566.2 | 1563.9 | Schoemies' Kwaggarus Chess Getaway 2024 (Senior) | 1 | 2024-05-18 | S | B | 0 | 0.06 | -0.06 | -1 | 0.05 | -0.05 | -1 |
| 1158.6 | 1139.9 | 20 | 20 | Botha, J (Johannes Cornelis) | | NBR | 1292 | 1291.2 | Bojanala Closed Chess Championships Stage 1 2024 (U14) | 1 | 2024-01-27 | S | W | 0 | 0.39 | -0.39 | -6.5 | 0.37 | -0.37 | -7.4 |
