Duran, Jason
Current rating: 1549
Record: 5-2
| Grand Prix Costa Rica 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 40 | Ching, Diego C (1500) | Won 2-0 | +181518 |
| 3sealed | 81 | Segovia, Cesar (1518) | Won 2-1 | +181536 |
| 4sealed | 52 | Gomez, Milton Salvador (1500) | Won 2-0 | +171553 |
| 5sealed | 51 | Galdamez, Adolfo L (1483) | Won 2-0 | +171570 |
| 6sealed | 17 | Schwartz, Stephen (1550) | Won 2-1 | +181588 |
| 7sealed | 17 | Gutierrez, Juan Antonio (1469) | Lost 0-2 | -201568 |
| 8sealed | 45 | Rivas, Ricardo J (1539) | Lost 0-2 | -191549 |
| average opponent: 1508record: 5-2 | new rating: 1549 | |||