58 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Klaasen, Calvin John | Dinham, James | 1-0 | B23 | SA Open 2026 Championship | 2026-07-05 |
| Klaasen, Calvin John | Li, Zhengfei | 1/2-1/2 | D11 | SA Open 2026 Championship | 2026-07-03 |
| Klaasen, Calvin John | Schutte, Andre | 1-0 | D02 | SA Open 2026 Championship | 2026-07-01 |
| Klaasen, Calvin John | Davies, Shaughn | 1-0 | D90 | SA Open 2026 Championship | 2026-06-29 |
| Klaasen, Calvin John | Rogov, Matfey | 1/2-1/2 | B45 | SA Open 2026 Championship | 2026-06-29 |
| Klaasen, Calvin John | Simpson, Michael | 1/2-1/2 | D37 | SA Adult Closed | 2026-02-22 |
| Klaasen, Calvin John | Karsten, Jan | 1/2-1/2 | A58 | SA Adult Closed | 2026-02-22 |
| Klaasen, Calvin John | Van Zyl-Rudd, Jack | 0-1 | E36 | SA Adult Closed | 2026-02-21 |
| Klaasen, Calvin John | Mazibuko, Khanya | 1-0 | E32 | SA Adult Closed | 2026-02-19 |
| Klaasen, Calvin John | Barrish, Daniel | 1-0 | E32 | SA Adult Closed | 2026-02-19 |
| Klaasen, Calvin John | Levitan, Caleb Levi | 0-1 | B40 | SA Adult Closed | 2026-02-19 |
| Klaasen, Calvin John | Kobese, Watu | 1/2-1/2 | B41 | Round 5: Klaasen, Calvin John - Kobese, Watu | 2025-01-08 |
| Klaasen, Calvin John | Schutte, Andre | 1/2-1/2 | D11 | Round 3: Klaasen, Calvin John - Schutte, Andre | 2025-01-07 |
| Klaasen, Calvin John | Milford, Eugene | 1-0 | A25 | Round 2: Klaasen, Calvin John - Milford, Eugene | 2025-01-06 |
| Klaasen, Calvin John | Mnguni, Jacob Dumisani | 1/2-1/2 | C43 | Round 10: Klaasen, Calvin John - Mnguni, Jacob Dumisani | 2024-04-01 |
| Klaasen, Calvin John | Levitan, Caleb Levi | 1/2-1/2 | C45 | Round 8: Klaasen, Calvin John - Levitan, Caleb Levi | 2024-03-31 |
| Klaasen, Calvin John | Cawdery, Daniel | 1/2-1/2 | B36 | Round 6: Klaasen, Calvin John - Cawdery, Daniel | 2024-03-29 |
| Klaasen, Calvin John | Mhango, Banele | 1/2-1/2 | E73 | Round 4: Klaasen, Calvin John - Mhango, Banele | 2024-03-28 |
| Klaasen, Calvin John | Mnyasta, Charlton | 0-1 | B88 | Round 2: Klaasen, Calvin John - Mnyasta, Charlton | 2024-03-26 |
| Klaasen, Calvin John | Simpson, Michael | 1-0 | B92 | Round 1: Klaasen, Calvin John - Simpson, Michael | 2024-03-25 |
| Calvin John Klaasen | Charlton Mnyasta | 1-0 | D35 | Round 8: Calvin John Klaasen - Charlton Mnyasta | 2024-01-06 |
| Calvin John Klaasen | Edward Potgieter | 1/2-1/2 | E11 | Round 6: Calvin John Klaasen - Edward Potgieter | 2024-01-05 |
| Calvin John Klaasen | Tezihano Mnyasta | 1/2-1/2 | D35 | Round 4: Calvin John Klaasen - Tezihano Mnyasta | 2024-01-04 |
| Calvin John Klaasen | Matfey Rogov | 1-0 | C17 | Round 4: Calvin John Klaasen - Matfey Rogov | 2023-06-11 |
| Calvin John Klaasen | Daniel Barrish | * | D02 | Round 2: Calvin John Klaasen - Daniel Barrish | 2023-06-10 |
| Calvin John Klaasen | Khanya Mazibuko | 1-0 | C94 | Round 7: Calvin John Klaasen - Khanya Mazibuko | 2022-05-12 |
| Calvin John Klaasen | Watu Kobese | 0-1 | E71 | Round 5: Calvin John Klaasen - Watu Kobese | 2022-05-10 |
| Calvin John Klaasen | Shabir Hussain Bhawoodien | 1/2-1/2 | A17 | Round 3: Calvin John Klaasen - Shabir Hussain Bhawoodien | 2022-05-08 |
| Calvin John Klaasen | Kenny Solomon | 1/2-1/2 | C88 | Round 1: Calvin John Klaasen - Kenny Solomon | 2022-05-07 |