Acevedo, Michael
Current rating: 1521
Record: 4-3
| Grand Prix Costa Rica 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 90 | Ortiz, Ottoniel (1438) | Lost 1-2 | -191481 |
| 3sealed | 76 | Tavera, Jorge (1518) | Won 2-1 | +191500 |
| 4sealed | 57 | Paulus, Jennifer (1500) | Won 2-0 | +181518 |
| 5sealed | 46 | Corrales, Jose Manuel (1525) | Won 2-0 | +181536 |
| 6sealed | 37 | Fish, Darryll (1705) | Lost 0-2 | -151521 |
| 7sealed | 68 | Caballero, Erick (1554) | Won 2-0 | +181539 |
| 8sealed | 21 | Alfaro Cascante, Artur (1543) | Lost 0-2 | -181521 |
| average opponent: 1541record: 4-3 | new rating: 1521 | |||