| 1553.5 | 1507.2 | 32 | 32 | Mendelsohn, DC (David Charles) | | GJM | 1642.9 | 1672.2 | Randburg Autumn Swiss 2026 | 8 | 2026-06-23 | S | B | 0.5 | 0.35 | 0.15 | 4.4 | 0.27 | 0.23 | 7.5 |
| 1496.7 | 1463.6 | 20 | 20 | Mendelsohn, DC (David Charles) | | GJM | 1687.3 | 1746.7 | Randburg Winter Swiss 2025 | 1 | 2025-07-29 | S | B | 0 | 0.24 | -0.24 | -4.5 | 0.13 | -0.13 | -2.6 |
| 1515.5 | 1457.9 | 20 | 20 | Mendelsohn, DC (David Charles) | | GJM | 1700.3 | 1693.5 | Randburg Chess Club New Year Swiss 2025 | 7 | 2025-03-25 | S | B | 0 | 0.24 | -0.24 | -4.5 | 0.18 | -0.18 | -3.6 |
| 1557.3 | 1507.6 | 20 | 20 | Mendelsohn, DC (David) | | GTP | 1640 | 1625.4 | Randburg Chess Club New Year Swiss 2024 | 3 | 2024-02-06 | S | W | 0 | 0.45 | -0.45 | -8.5 | 0.4 | -0.4 | -8 |
| 1391.2 | 1350.3 | 20 | 20 | Mendelsohn, DC (David) | | GTP | 1628.4 | 1627.8 | Randburg Summer Swiss 2022 | 6 | 2022-11-29 | S | W | 0.5 | 0.27 | 0.23 | 4.3 | 0.22 | 0.28 | 5.6 |
| 1297.2 | 1276.9 | 20 | 20 | Mendelsohn, DC (David) | | GTP | 1621.9 | 1621.1 | Randburg Club Championships Swiss 2022 | 7 | 2022-09-06 | S | W | 0 | 0.16 | -0.16 | -3 | 0.14 | -0.14 | -2.8 |
