| 1347.9 | 1341.9 | 20 | 20 | Jacobs, CN (Calvin Nicholas) | | GTP | 1664.7 | 1666.7 | 2019 TC SAJCC Prep Tournament (A) | 5 | 2019-11-30 | S | B | 1 | 0.09 | 0.91 | 15.1 | 0.08 | 0.92 | 18.4 |
| 1278.7 | 1278.4 | 20 | 20 | Jacobs, CN (Calvin Nicholas) | | GTP | 1176.7 | 1172.2 | 2018 Centurion Chess Club Open (C) | 4 | 2018-09-29 | S | W | 0 | 0.66 | -0.66 | -11 | 0.67 | -0.67 | -13.4 |
| 1181.1 | 1176 | 20 | 20 | Jacobs, CN (Calvin Nicholas) | | GTP | 1141.8 | 1144.4 | 2018 Mid Gauteng Open (C) | 2 | 2018-08-18 | S | B | 1 | 0.5 | 0.5 | 8.3 | 0.5 | 0.5 | 10 |
| 1200 | 1200 | 20 | 20 | Jacobs, CN (Calvin Nicholas) | | GTP | 1103.6 | 1106.6 | 2018 Menlo Open Chess Tournament (C) | 3 | 2018-07-21 | S | B | 0 | 0.57 | -0.57 | -9.5 | 0.57 | -0.57 | -11.4 |
