Costa Rica
Male
FIDE ID:
Mauricio Arias Santana
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| US Chess Masters 2022 | 11/23/2022 | 2364 |  United States |
| 44th Olympiad 2022 | 07/29/2022 | 2018 |  India |
| St Louis Inv IM 2019 | 11/21/2019 | 2306 | United States |
| St Louis Inv IM 2017 | 11/17/2017 | 2330 | United States |
Mauricio Arias Santana Opening Repertoire with White pieces
| ECO | Opening | Games |
| B07 | Pirc defence | 7 games |
| C77 | Ruy Lopez, Morphy defence | 4 games |
| A45 | Queen's pawn game | 3 games |
| C14 | French, classical variation | 3 games |
Mauricio Arias Santana Opening Repertoire with Black pieces
| ECO | Opening | Games |
| A90 | Dutch defence | 4 games |
| B03 | Alekhine's defence | 3 games |
| A34 | English, symmetrical variation | 3 games |
| A80 | Dutch | 3 games |
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