| 1333.3 | 1337.7 | 20 | 20 | Diedericks, C (Christiaan) | | GSV | 1382.8 | 1380.9 | LS Vryheidsmonument Chess Open 2022 (LSEN) | 3 | 2022-05-07 | S | B | 0 | 0.4 | -0.4 | -6.6 | 0.41 | -0.41 | -8.2 |
| 1284.5 | 1280.4 | 20 | 20 | Diedericks, C (Christiaan) | | GSV | 1343.4 | 1331.2 | Lux Deo NG Kerk Chess Open 2022 (LSEN) | 3 | 2022-04-09 | S | B | 0 | 0.39 | -0.39 | -6.5 | 0.4 | -0.4 | -8 |
| 1221.5 | 1227.2 | 20 | 20 | Diedericks, C (Christiaan) | | GSV | 1231.8 | 1220.3 | 2019 South African Junior LSEN Championships (U15A SID) | 3 | 2020-01-11 | S | B | 1 | 0.45 | 0.55 | 10.3 | 0.47 | 0.53 | 10.6 |
| 1160.2 | 1137.6 | 20 | 20 | Diedericks, C (Christiaan) | | GSV | 1230.3 | 1226.5 | Sedibeng Heritageday Open 2019 (A) | 2 | 2019-09-24 | S | W | 0 | 0.46 | -0.46 | -7.6 | 0.44 | -0.44 | -8.8 |
| 1248 | 1243.8 | 20 | 20 | Diedericks, C (Christiaan) | | GSV | 1231.5 | 1225.4 | LS Voorwaarts & Dr P Hangelbroek Chess Open 2019 (LSEN) | 5 | 2019-08-31 | S | W | 0 | 0.56 | -0.56 | -9.3 | 0.56 | -0.56 | -11.2 |
| 758.2 | 804.4 | 20 | 20 | Diedericks, C (Christiaan) | | GSV | 1213.3 | 1200.2 | TST-MSA Chess Open 2019 (LSEN) | 2 | 2019-07-20 | S | W | 1 | 0.01 | 0.99 | 16.4 | 0.08 | 0.92 | 18.4 |
| 585.6 | 600 | 20 | 20 | Diedericks, C (Christiaan) | | GSV | 1245.6 | 1238 | Drie Riviere Open 2019 (E) | 4 | 2019-06-08 | S | B | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 563.4 | 575.6 | 20 | 20 | Diedericks, C (Christiaan) | | GSV | 1247.7 | 1239.5 | Dirk de Koster Chess Open 2019 (LESN) | 3 | 2019-04-13 | S | B | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 0 | 0 | 20 | 20 | Diedericks, C (Christiaan) | | GSV | 625 | 625 | 2017 Heidelberg Open (Lsen) | 1 | 2017-02-04 | S | W | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
