| 1590.4 | 1594.5 | 20 | 20 | Grobler, R (Rowan) | | NBR | 1536.1 | 1533.1 | Bojanala's Grenville Open 2026 (Rooks) | 3 | 2026-02-21 | S | B | 1 | 0.52 | 0.48 | 8 | 0.53 | 0.47 | 9.4 |
| 1536.6 | 1283.5 | 20 | 20 | Grobler, R (Rowan) | | NBR | 1601.6 | 1200 | Bojanala's Kings & Queens 2025 (Blitz) | 5 | 2025-10-25 | B | W | 1 | 0.47 | 0.53 | 1.9 | 0.64 | 0.36 | 7.2 |
| 1520.4 | 1502.6 | 20 | 20 | Grobler, R (Rowan) | | NBR | 1513.4 | 1499.2 | Bojanala Circuit Championships 1 of 4 2025 (U16) | 4 | 2025-03-01 | S | B | 0 | 0.47 | -0.47 | -7.8 | 0.46 | -0.46 | -9.2 |
| 1575.5 | 1567.9 | 20 | 20 | Grobler, R (Rowan) | | NBR | 1440.8 | 1413 | Bojanala Closed Chess Championships 2025 (U14) | 4 | 2025-02-01 | S | W | 0 | 0.7 | -0.7 | -14 | 0.72 | -0.72 | -14.4 |
| 1549.5 | 1524.5 | 20 | 20 | Grobler, R (Rowan) | | NBR | 1526.6 | 1515.4 | Bojanala's Battle In The Kloof 2024 (Queens) | 4 | 2024-09-21 | S | W | 1 | 0.57 | 0.43 | 7.1 | 0.55 | 0.45 | 9 |
| 1566.2 | 1563.9 | 20 | 20 | Grobler, R (Rowan) | | NBR | 1412.7 | 1411 | Bojanala Circuit Championship 1 of 4 2024 (U14) | 3 | 2024-05-25 | S | W | 1 | 0.72 | 0.28 | 4.6 | 0.72 | 0.28 | 5.6 |
| 1351.5 | 1350.6 | 20 | 20 | Grobler, R (Rowan) | | NBR | 1339.3 | 1353.4 | Bojanala Closed Chess Championships Finals 2024 (U14) | 4 | 2024-02-11 | S | W | 1 | 0.56 | 0.44 | 8.8 | 0.54 | 0.46 | 9.2 |
| 1292 | 1291.2 | 20 | 20 | Grobler, R (Rowan) | | NBR | 1283.3 | 1286.5 | Bojanala Closed Chess Championships Stage 1 2024 (U14) | 4 | 2024-01-27 | S | W | 0.5 | 0.55 | -0.05 | -0.8 | 0.55 | -0.05 | -1 |
| 1397.5 | 1200 | 20 | 20 | Grobler, R (Rowan) | | NBR | 1386.1 | 1200 | Bojanala School League 2023 (Primary School Open) | 4 | 2023-08-19 | R | B | 1 | 0.47 | 0.53 | 7.4 | 0.46 | 0.54 | 10.8 |
| 1298.7 | 1299.3 | 20 | 20 | Grobler, R (Rowan) | | NBR | 1503.6 | 1497 | Bojanala SAJCC Trials 2022 (U12) | 2 | 2022-09-23 | S | B | 0 | 0.22 | -0.22 | -4.4 | 0.23 | -0.23 | -4.6 |
| 1273 | 1274.4 | 20 | 20 | Grobler, R (Rowan) | | NBR | 1502.5 | 1495.1 | Bojanala Chess Federation Wildcards 2022 (U12) | 4 | 2022-08-20 | S | W | 0 | 0.27 | -0.27 | -4.5 | 0.28 | -0.28 | -5.6 |
