| 1698.5 | 1751.3 | 20 | 20 | Mathebula, X (Xolani Cebo) | | NCF | 1797.6 | 1811.6 | Sol Plaatje Round Robin IV 2021 | 4 | 2021-04-03 | S | B | 0 | 0.34 | -0.34 | -6.8 | 0.39 | -0.39 | -7.8 |
| 1698.5 | 1622.1 | 20 | 20 | Mathebula, X (Xolani Cebo) | | NCF | 1797.6 | 1203.4 | Morris Chess Club Challenge 2021 | 3 | 2021-04-10 | R | W | 0 | 0.43 | -0.43 | -5.4 | 1 | -1 | -20 |
| 1629.4 | 1632.8 | 20 | 20 | Mathebula, X (Xolani Cebo) | | NCF | 1684.8 | 1684.7 | 6th Piet van Zyl Tournament 2018 (A) | 5 | 2018-12-01 | S | W | 1 | 0.48 | 0.52 | 10.4 | 0.48 | 0.52 | 10.4 |
| 1646 | 1650.7 | 20 | 20 | Mathebula, X (Xolani Cebo) | | NCF | 1569.8 | 1570.9 | Northern Cape Open 2018 (Prestige) | 3 | 2018-10-27 | S | B | 0.5 | 0.55 | -0.05 | -0.9 | 0.55 | -0.05 | -1 |
