| Barbosa, Jailson Joao1932 | 1-0 | Koinski, Carlos Cesar1542 | Brazil Chess - Floripa | 2026 |
| Gomes, Maria Eduarda Papini1870 | 1-0 | Koinski, Carlos Cesar1583 | Floripa Winter 2024 | 2024 |
| De Souza, Samuel B Ornelas1863 | 0-1 | Koinski, Carlos Cesar1583 | Floripa Winter 2024 | 2024 |
| Koinski, Carlos Cesar1583 | 0-1 | Bassani, Jaison Jose1994 | Floripa Winter 2024 | 2024 |
| Ferreira, Andrei Dias1977 | 1-0 | Koinski, Carlos Cesar1371 | 10th Floripa Open 2024 | 2024 |
| Koinski, Carlos Cesar1450 | 0-1 | Ribeiro, Fabiano Pinto1865 | 9th Floripa Open 2023 | 2023 |
| Moritz, Diego Homrich1854 | 1-0 | Koinski, Carlos Cesar1450 | 9th Floripa Open 2023 | 2023 |
| Mazetto, S2065 | 1-0 | Koinski, Carlos Cesar1450 | 9th Floripa Open 2023 | 2023 |
| Leao, Cintia Rocha1926 | 1-0 | Koinski, Carlos Cesar1431 | 8th Floripa Open 2022 | 2022 |
| Koinski, Carlos Cesar1431 | 0-1 | Mariani, Daniel Brandao2047 | 8th Floripa Open 2022 | 2022 |
| Boff, Lucas Strauss2023 | 1-0 | Koinski, Carlos Cesar1431 | 8th Floripa Open 2022 | 2022 |
| Frattini, Beatriz Maria1880 | 1-0 | Koinski, Carlos Cesar1516 | 7th Floripa Open 2021 | 2021 |
| Koinski, Carlos Cesar1511 | 0-1 | Soares, Re21876 | 6th Floripa Open 2020 | 2020 |
| De Freitas, Ju1834 | ½-½ | Koinski, Carlos Cesar1511 | 6th Floripa Open 2020 | 2020 |
| Koinski, Carlos Cesar1511 | 0-1 | Vieira, J11891 | 6th Floripa Open 2020 | 2020 |