Oscar Humberto Castro
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Sub-Zonal 2.3.4 2011 | 09/23/2011 | 2363 | Colombia |
| VII Pereyra Puebla Mem | 12/05/2008 | 2326 | Argentina |
| Cali Continental op 4th | 07/10/2007 | 2244 | Colombia |
| COL-ch | 06/13/2007 | 2308 | Colombia |
Oscar Humberto Castro Opening Repertoire with White pieces
| ECO | Opening | Games |
| B25 | Sicilian, closed | 21 games |
| B22 | Sicilian, Alapin's variation (2.c3) | 17 games |
| B26 | Sicilian, closed, 6.Be3 | 15 games |
| C00 | French defence | 15 games |
Oscar Humberto Castro Opening Repertoire with Black pieces
| ECO | Opening | Games |
| B00 | King's pawn opening | 18 games |
| A90 | Dutch defence | 12 games |
| C45 | Scotch game | 11 games |
| A80 | Dutch | 10 games |


Colombia
Argentina