Salas S, Walter
Current rating: 1549
Record: 5-2
| Grand Prix Costa Rica 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 72 | Velasquez, Jonathan (1500) | Won 2-1 | +181518 |
| 3sealed | 85 | Quesada, Juan (1482) | Won 2-0 | +171535 |
| 4sealed | 80 | Potes, Julio (1500) | Won 2-0 | +181553 |
| 5sealed | 49 | Alvarez, Daniel (1534) | Lost 0-2 | -191534 |
| 6sealed | 91 | Rivera Azofeifa, Jose (1501) | Won 2-0 | +181552 |
| 7sealed | 72 | Cravioto, Andres (1518) | Won 2-1 | +171569 |
| 8sealed | 31 | Bojorquez, Wilfredo (1439) | Lost 0-2 | -201549 |
| average opponent: 1496record: 5-2 | new rating: 1549 | |||