Puerto Rico
Male
FIDE ID:
Mark Machin Rivera
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| 42nd Olympiad 2016 | 09/02/2016 | 2153 |  Azerbaijan |
| 44th Annual World Open | 06/30/2016 | 2338 |  United States |
| 41st Olympiad Open 2014 | 08/02/2014 | 2071 |  Norway |
| 40th Olympiad Open | 08/28/2012 | 2100 |  Turkey |
Mark Machin Rivera Repertoire with White pieces (most played)
| ECO | Opening | Games |
| A10 | English opening | 5 games |
| A20 | English opening | 5 games |
| A15 | English, 1...Nf6 (Anglo-Indian defense) | 4 games |
| A36 | English, symmetrical variation | 3 games |
Mark Machin Rivera Repertoire with Black pieces (most played)
| ECO | Opening | Games |
| B06 | Robatsch (modern) defence | 8 games |
| E81 | King's Indian, Saemisch, 5...O-O | 5 games |
| E63 | King's Indian, fianchetto, Panno variation | 1 games |
| E71 | King's Indian, Makagonov system (5.h3) | 1 games |
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