Hastedt, Carlos Emilio
Current rating: 1581
Record: 8-4
| Grand Prix Costa Rica 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 21 | Potes, Julio (1518) | Won 2-1 | +181518 |
| 4sealed | 19 | Jones, Craig (1769) | Lost 0-2 | -131505 |
| 5sealed | 41 | Quiros, Jerry (1518) | Won 2-0 | +181523 |
| 6sealed | 25 | van Sickle, Joseph (1410) | Lost 0-2 | -201503 |
| 7sealed | 56 | Garita, Pablo (1520) | Won 2-0 | +181521 |
| 8sealed | 47 | Gonzalez, Amed (1540) | Won 2-0 | +191540 |
| 9draft | 8 | Piedra Mora, David (1608) | Won 2-1 | +191559 |
| 10draft | 32 | Virula, Christopher (1557) | Won 2-1 | +181577 |
| 11draft | 3 | Duran, Gabriel (1624) | Lost 0-2 | -171560 |
| 12draft | 2 | Virula, Christopher (1559) | Lost 0-2 | -181542 |
| 13draft | 24 | Enberg, Staffan (1670) | Won 2-1 | +201562 |
| 14draft | 13 | RUIZ, VLADIMIR (1593) | Won 2-0 | +191581 |
| average opponent: 1574record: 8-4 | new rating: 1581 | |||