| 1549.9 | 1547.7 | 20 | 20 | Grobler, R (Rowan) | | NBR | 1513.4 | 1499.2 | Bojanala Circuit Championships 1 of 4 2025 (U16) | 2 | 2025-03-01 | S | W | 0.5 | 0.58 | -0.08 | -1.3 | 0.6 | -0.1 | -2 |
| 1531.3 | 1528.7 | 20 | 20 | Grobler, R (Rowan) | | NBR | 1471.3 | 1469.9 | Bojanala's Clash Of Schools 2024 (Championship) | 4 | 2024-07-20 | S | W | 1 | 0.61 | 0.39 | 6.5 | 0.61 | 0.39 | 7.8 |
| 1478.7 | 1485.7 | 20 | 20 | Grobler, R (Rowan) | | NBR | 1410 | 1407.2 | Bojanala Circuit Championship 2 of 4 2024 (U14) | 3 | 2024-06-15 | S | B | 0.5 | 0.54 | -0.04 | -0.7 | 0.55 | -0.05 | -1 |
| 1454.3 | 1457.7 | 20 | 20 | Grobler, R (Rowan) | | NBR | 1387.5 | 1392.3 | Bojanala's Rating Express 2024 (Bishops) | 5 | 2024-04-06 | S | W | 1 | 0.62 | 0.38 | 6.3 | 0.62 | 0.38 | 7.6 |
| 1464.6 | 1477.6 | 20 | 20 | Grobler, R (Rowan) | | NBR | 1339.3 | 1353.4 | Bojanala Closed Chess Championships Finals 2024 (U14) | 3 | 2024-02-10 | S | B | 0 | 0.6 | -0.6 | -12 | 0.6 | -0.6 | -12 |
| 1469.7 | 1486 | 20 | 20 | Grobler, R (Rowan) | | NBR | 1283.3 | 1286.5 | Bojanala Closed Chess Championships Stage 1 2024 (U14) | 2 | 2024-01-27 | S | B | 0 | 0.68 | -0.68 | -11.3 | 0.69 | -0.69 | -13.8 |
| 1476.7 | 1200 | 20 | 20 | Grobler, R (Rowan) | | NBR | 1386.1 | 1200 | Bojanala School League 2023 (Primary School Open) | 5 | 2023-08-19 | R | W | 1 | 0.65 | 0.35 | 4.9 | 0.54 | 0.46 | 9.2 |
| 1549.3 | 1543.6 | 20 | 20 | Grobler, R (Rowan) | | NBR | 1426.1 | 1422.1 | One For The Ages 2023 (U14) | 4 | 2023-02-18 | S | B | 1 | 0.6 | 0.4 | 6.6 | 0.6 | 0.4 | 8 |
| 1473.7 | 1470.8 | 20 | 20 | Grobler, R (Rowan) | | NBR | 1502.5 | 1495.1 | Bojanala Chess Federation Wildcards 2022 (U12) | 5 | 2022-08-20 | S | B | 1 | 0.42 | 0.58 | 9.7 | 0.43 | 0.57 | 11.4 |
