| 1598.2 | 1600.5 | 20 | 20 | Jacobs, CN (Calvin Nicholas) | | GTP | 1969.5 | 1984.1 | 2024 Alekhine Open Chess Tournament (A) | 1 | 2024-08-09 | S | W | 0 | 0.11 | -0.11 | -2.1 | 0.1 | -0.1 | -2 |
| 1563.8 | 1565.5 | 20 | 20 | Jacobs, CN (Calvin Nicholas) | | GTP | 1932.3 | 1939.9 | Menlopark Open Chess Tournament 2024 (A) | 1 | 2024-07-13 | S | B | 0 | 0.03 | -0.03 | -0.5 | 0.02 | -0.02 | -0.4 |
| 1605.7 | 1608.9 | 20 | 20 | Jacobs, CN (Calvin Nicholas) | | GTP | 1701.3 | 1721.2 | 2023 Etienne Lewis Closed Tournament (U16) | 5 | 2023-08-27 | S | B | 0.5 | 0.35 | 0.15 | 2.8 | 0.33 | 0.17 | 3.4 |
| 1540.1 | 1531.6 | 20 | 20 | Jacobs, CN (Calvin Nicholas) | | GTP | 1549.2 | 1547 | 2022 Tshwane Chess Open Registration Tournament (A) | 3 | 2022-01-29 | S | W | 0 | 0.53 | -0.53 | -8.8 | 0.52 | -0.52 | -10.4 |
| 1606.2 | 1607.2 | 20 | 20 | Jacobs, CN (Calvin Nicholas) | | GTP | 1573.6 | 1574.6 | 2021 Registration Tournament (A) | 3 | 2021-03-13 | S | B | 1 | 0.5 | 0.5 | 8.3 | 0.5 | 0.5 | 10 |
| 925.7 | 927.2 | 20 | 20 | Jacobs, CN (Calvin Nicholas) | | GTP | 1103.6 | 1106.6 | 2018 Menlo Open Chess Tournament (C) | 1 | 2018-07-21 | S | W | 0 | 0.33 | -0.33 | -5.5 | 0.33 | -0.33 | -6.6 |
| 596 | 596 | 20 | 20 | Jacobs, Cn (Calvin Nicholas) | | GTP | 736 | 736 | 2017 Jacaranda Open (D) | 4 | 2017-10-14 | S | B | 0 | 0.31 | -0.31 | -5.1 | -0.31 | 0.31 | 6.2 |
