| 1820.4 | 1820.7 | 20 | 20 | Mthunzi, B (Brighton) | | GE | 1987.3 | 1977.7 | 2023 Woman's Day Open Chess Tournament (Prestige) | 4 | 2023-08-09 | S | B | 0 | 0.26 | -0.26 | -4.3 | 0.28 | -0.28 | -5.6 |
| 1750.2 | 1744.9 | 20 | 20 | Mthunzi, B (Brighton) | | GE | 2039.1 | 2050.1 | Chess Power House RR 1 2022 | 4 | 2022-01-22 | S | B | 0 | 0.12 | -0.12 | -2 | 0.1 | -0.1 | -2 |
| 1730.3 | 1732.8 | 20 | 20 | Mthunzi, B (Brighton) | | GE | 2043.8 | 2053 | Eureka Chess Open 2019 (A) | 5 | 2019-07-27 | S | W | 0.5 | 0.18 | 0.32 | 5.3 | 0.17 | 0.33 | 6.6 |
| 1721.3 | 1717.2 | 20 | 20 | Mthunzi, B (Brighton) | | GE | 1985.3 | 1995.5 | Springs Chess Club Open 2019 (A) | 3 | 2019-02-09 | S | B | 0 | 0.15 | -0.15 | -2.5 | 0.13 | -0.13 | -2.6 |
| 1638 | 1638 | 20 | 20 | Mthunzi, B (Brighton) | | GTP | 2015 | 2015 | 2017 Pss + Jnw Classic (A) | 2 | 2017-04-22 | S | W | 0 | 0.09 | -0.09 | -1.6 | -0.09 | 0.09 | 1.8 |
| 1669 | 1669 | 20 | 20 | Mthunzi, B (Brighton) | | GJM | 2007 | 2007 | Youth Day Tournament 2016 (Open) | 4 | 2016-06-18 | S | B | 0 | 0.12 | -0.12 | -2 | -0.12 | 0.12 | 2.4 |
| 1572 | 1572 | 20 | 20 | Mthunzi, B (Brighton) | | GJM | 2046 | 2046 | Sedibeng Grand Prix 2015 (A) | 3 | 2015-08-22 | S | B | 0 | 0.05 | -0.05 | -0.8 | -0.05 | 0.05 | 1 |
| 1489 | 1489 | 20 | 20 | Mthunzi, B (Brighton) | | GJM | 2006 | 2006 | Orion Group Open Chess Festival (Prestige) | 2 | 2015-04-15 | S | W | 0 | 0.04 | -0.04 | -0.8 | -0.04 | 0.04 | 0.8 |
| 1398 | 1398 | 20 | 20 | Mthunzi, B (Brighton) | | GW | 1960 | 1960 | Emerald Sedibeng Ope 2013 Afd A | 4 | 2013-04-20 | S | W | 0.5 | 0.02 | 0.48 | 8 | 0.48 | 0.02 | 0.4 |
