Male
FIDE ID:
Mario Villanueva
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| 4th Buenos Aires Open | 05/18/2026 | 2307 |  Argentina |
| II Rio Chess Masters 2026 | 04/11/2026 | 2364 |  Brazil |
| 100th ch-ARG 2025 | 11/25/2025 | 2428 | Argentina |
| I Rio Chess Masters 2025 | 09/06/2025 | 2322 | Brazil |
Most Played Openings as White
| ECO | Opening | Games |
| C50 | King's pawn game | 7 games |
| B90 | Sicilian, Najdorf | 7 games |
| C78 | Ruy Lopez, 5.O-O | 7 games |
| B43 | Sicilian, Kan, 5.Nc3 | 6 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C42 | Petrov's defence | 17 games |
| A40 | Queen's pawn | 11 games |
| A05 | Reti opening | 9 games |
| C11 | French defence | 8 games |
