| Greau Carreno, Rodrigo Alberto1961 | 1-0 | Rahn, Marlon Cristiano1549 | Brazil Chess - Floripa | 2026 |
| Leonardi, Lucas1852 | 1-0 | Rahn, Marlon Cristiano1568 | 11th Floripa Open 2025 | 2025 |
| Rahn, Marlon Cristiano1568 | 0-1 | Pessoa, Vitor Henrique Leopoldino1835 | 11th Floripa Open 2025 | 2025 |
| Rahn, Marlon Cristiano1568 | 0-1 | Torres, Federico2056 | 11th Floripa Open 2025 | 2025 |
| Rodrigues, Julliano de Araujo1903 | 1-0 | Rahn, Marlon Cristiano1587 | V Duchamp Int Open 2024 | 2024 |
| Rahn, Marlon Cristiano1587 | 0-1 | Silva, Carolina Alves1863 | V Duchamp Int Open 2024 | 2024 |
| De Miranda, Eduardo Rodrigues C1823 | ½-½ | Rahn, Marlon Cristiano1587 | V Duchamp Int Open 2024 | 2024 |
| Rahn, Marlon Cristiano1587 | 0-1 | Soares, Joao Carlos T. C.1982 | V Duchamp Int Open 2024 | 2024 |
| Rekik, Ismail1919 | 1-0 | Rahn, Marlon Cristiano1295 | 10th Floripa Open 2024 | 2024 |
| De Freitas, Isabella Ribeiro Conti1886 | 1-0 | Rahn, Marlon Cristiano1226 | 9th Floripa Open 2023 | 2023 |
| Bail, Ellen Larissa1864 | 1-0 | Rahn, Marlon Cristiano1196 | 8th Floripa Open 2022 | 2022 |
| Rahn, Marlon Cristiano1057 | 0-1 | Souza dos Santos, Matheus Garcett1891 | 5th Floripa Open 2019 | 2019 |