39 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Jacobs, Calvin Nicholas | Hercules, Benjamin Vincent | 1/2-1/2 | B12 | South African Chess Open | 2025-07-05 |
| Jacobs, Calvin Nicholas | Beukes, Dante M | 1/2-1/2 | B22 | South African Chess Open | 2025-07-04 |
| Jacobs, Calvin Nicholas | Peter, Neathan | 1-0 | B21 | South African Chess Open | 2025-07-03 |
| Jacobs, Calvin Nicholas | Palmer, Reegan | 1/2-1/2 | C00 | South African Chess Open | 2025-07-01 |
| Jacobs, Calvin Nicholas | Oatlhotse, Providence | 0-1 | A01 | South African Chess Open | 2025-06-28 |
| Jacobs, Calvin Nicholas | Smit, Devon | 1-0 | A01 | South African Chess Open | 2025-06-28 |
| Jacobs, Calvin Nicholas | Mmola, Tumelo | 1-0 | C00 | Round 5: Jacobs, Calvin Nicholas - Mmola, Tumelo | 2025-04-28 |
| Jacobs, Calvin Nicholas | Sarakusebwa, Shepard | 1/2-1/2 | B21 | Round 3: Jacobs, Calvin Nicholas - Sarakusebwa, Shepard | 2025-04-27 |
| Jacobs, Calvin Nicholas | Dortley, Devon | 1-0 | B21 | Round 1: Jacobs, Calvin Nicholas - Dortley, Devon | 2025-04-26 |
| Jacobs, Calvin Nicholas | Ngcongo, Minenhle | 0-1 | C56 | Round 9: Jacobs, Calvin Nicholas - Ngcongo, Minenhle | 2024-09-29 |
| Jacobs, Calvin Nicholas | Simpson, Michael | 0-1 | B22 | Round 5: Jacobs, Calvin Nicholas - Simpson, Michael | 2024-09-27 |
| Jacobs, Calvin Nicholas | Samuels, Ethan | 1/2-1/2 | B21 | Round 3: Jacobs, Calvin Nicholas - Samuels, Ethan | 2024-09-26 |
| Jacobs, Calvin Nicholas | Oatlhotse, Providence | 1-0 | B12 | Round 1: Jacobs, Calvin Nicholas - Oatlhotse, Providence | 2024-09-25 |
| Jacobs, Calvin Nicholas | Yan, Weilun | 1-0 | A01 | Round 9: Jacobs, Calvin Nicholas - Yan, Weilun | 2024-06-22 |
| Jacobs, Calvin Nicholas | Baruch, Liam | 1-0 | A01 | 2024 AFRICAN YOUTH CHESS CHAMPIONSHIPS - U16 OPEN | 2024-06-20 |
| Jacobs, Calvin Nicholas | Abdallah, Mohamed Khalil | 1/2-1/2 | B21 | Round 5: Jacobs, Calvin Nicholas - Abdallah, Mohamed Khalil | 2024-06-19 |
| Jacobs, Calvin Nicholas | Gilbody, Thomas | 1-0 | C44 | World Youth Cup 2021 O12-G16 - Open 12 | 2021-08-06 |
| Jacobs, Calvin Nicholas | Hvozdz, Aliaksandr | 0-1 | B01 | World Youth Cup 2021 O12-G16 - Open 12 | 2021-08-06 |
| Jacobs, Calvin Nicholas | Kemularia, Nika | 0-1 | B21 | World Youth Cup 2021 O12-G16 - Open 12 | 2021-08-06 |
| Jacobs, Calvin Nicholas | Glavac, Leo | 1-0 | C56 | World Youth Cup 2021 O12-G16 - Open 12 | 2021-08-06 |
| Jacobs, Calvin Nicholas | Sitsanis, Nikolaos 44725 | 0-1 | B21 | World Youth Cup 2021 O12-G16 - Open 12 | 2021-08-06 |