| 1367.8 | 1373.8 | 20 | 20 | Schonken, SDT (Stefan) | | GSV | 1077.3 | 1105.1 | TST-MSA Chess Open 2019 (A) | 1 | 2019-07-20 | S | W | 1 | 0.88 | 0.12 | 2 | 0.85 | 0.15 | 3 |
| 1347.2 | 1346.1 | 20 | 20 | Schonken, SDT (Stefan) | | GSV | 1054 | 1059.9 | Drie Riviere Open 2019 (A) | 5 | 2019-06-08 | S | B | 1 | 0.8 | 0.2 | 3.3 | 0.79 | 0.21 | 4.2 |
| 1255.1 | 1241 | 20 | 20 | Schonken, SDT (Stefan) | | GSV | 1011.9 | 994.3 | 2019 Heidelberg Open (B) | 1 | 2019-02-02 | S | B | 1 | 0.74 | 0.26 | 5.2 | 0.75 | 0.25 | 5 |
| 1224.6 | 1235.8 | 20 | 20 | Schonken, SDT (Stefan) | | GSV | 1109.1 | 1160.7 | Hoerskool Drie Riviere Open 2018 (B) | 5 | 2018-06-09 | S | W | 1 | 0.68 | 0.32 | 5.3 | 0.63 | 0.37 | 7.4 |
| 699 | 699 | 20 | 20 | Schonken, Sdt (Stefan) | | GSV | 716 | 716 | Rippies Skaak Ope 2017 (B) | 2 | 2017-06-24 | S | B | 0 | 0.48 | -0.48 | -8 | -0.48 | 0.48 | 9.6 |
| 873 | 873 | 20 | 20 | Schonken, Sdt (Stefan) | | GSV | 750 | 750 | Henley Open 2016 (B) | 5 | 2016-05-21 | S | W | 1 | 0.67 | 0.33 | 5.5 | 0.33 | 0.67 | 13.4 |
| 782 | 782 | 20 | 20 | Schonken, Sdt (Stefan) | | GSV | 525 | 525 | Vaal River Chess Club Open 2015 (C) | 1 | 2015-01-31 | S | W | 1 | 0.82 | 0.18 | 3 | 0.18 | 0.82 | 16.4 |
| 661 | 661 | 20 | 20 | Schonken, Sdt (Stefan) | | GSV | 525 | 525 | Vaal River Chess Club Open 2015 (C) | 2 | 2015-01-31 | S | W | 0 | 0.68 | -0.68 | -11.3 | -0.68 | 0.68 | 13.6 |
| 747 | 747 | 20 | 20 | Schonken, Sdt (Stefan) | | GSV | 525 | 525 | Vaal River Chess Club Open 2015 (C) | 3 | 2015-01-31 | S | B | 0.5 | 0.78 | -0.28 | -4.6 | -0.28 | 0.78 | 15.6 |
| 0 | 0 | 20 | 20 | Schonken, Sdt (Stefan) | | GSV | 525 | 525 | Vaal River Chess Club Open 2015 (C) | 4 | 2015-01-31 | S | W | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 369 | 369 | 20 | 20 | Schonken, Sdt (Stefan) | | GSV | 525 | 525 | Vaal River Chess Club Open 2015 (C) | 5 | 2015-01-31 | S | B | 0 | 0.29 | -0.29 | -4.8 | -0.29 | 0.29 | 5.8 |
