| 113319 | Costa - Eser | 0-1 | 28th of January 2019 07:01:41 | (chess) | rated |
| 113324 | Hidayat - Costa | 0-1 | 28th of January 2019 07:01:41 | (chess) | rated |
| 113329 | Costa - Stolarov | 0-1 | 28th of January 2019 07:01:41 | (chess) | rated |
| 113330 | Pech - Costa | 1-0 | 29th of January 2019 19:04:05 | (chess) | rated |
| 113331 | Costa - Zmolil | 0-1 | 28th of January 2019 07:01:41 | (chess) | rated |
| 113332 | Urdiana - Costa | 0-1 | 28th of January 2019 07:01:41 | (chess) | rated |