Costas Chapela, Gustavo
Current rating: 1578
| Grand Prix Madrid 2010 (legacy) | starting rating: 1539 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 110 | Rodriguez De Las Heras, Gonz (1500) | Won 2-0 | +171556 |
| 2legacy | 176 | Gonzalez, Francisco [ESP] (1746) | Won 2-1 | +221578 |
| 3legacy | 95 | Goni Etxenike, Joseba (1518) | Won 2-0 | +171595 |
| 4legacy | 21 | Golia, Patrizio (1903) | Lost 0-2 | -131582 |
| 5legacy | 152 | Jans, Roel (1485) | Won 2-1 | +161598 |
| 6legacy | 121 | Venchiarutti, Philippe (1616) | Won 2-0 | +191617 |
| 7legacy | 58 | Filler, Michael (1524) | Lost 0-2 | -201597 |
| 8legacy | 158 | Velazquez, Jose Luis (1554) | Lost 0-2 | -191578 |
| top | average opponent: 1606record: 5-3 | new rating: 1578 | ||
| Grand Prix Barcelona 2009 (ARB standard) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 54 | Gosset, Maxime (1595) | Won 2-1 | +201540 |
| 2standard | 116 | Zano Saez, Santiago (1500) | Won 2-1 | +171557 |
| 3standard | 32 | Laurent, Marty (1536) | Lost 1-2 | -181539 |
| 4standard | 114 | Lopez Rodriguez, Alex (1669) | Lost 1-2 | -161523 |
| 5standard | 227 | Martin, Victor (1514) | Won 2-1 | +181541 |
| 6standard | 213 | Veresov, Aleksej (1454) | Won 2-1 | +161557 |
| 7standard | 80 | Gilis, Lucas (1625) | Lost 1-2 | -171540 |
| 8standard | 123 | Ortega Redondo, Oscar (1530) | Won 2-0 | +181558 |
| 9standard | 97 | Perez, Jorge [ESP] (1492) | Lost 0-2 | -191539 |
| top | average opponent: 1546record: 5-4 | new rating: 1539 | ||
| Grand Prix Bilbao 2005 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 434 | Sarrible, Ernesto (1500) | Lost 0-2 | -181482 |
| 2extended | 522 | Lago, Juan Luis (1482) | Won 2-1 | +181500 |
| 3extended | 481 | Sanchez de Alarcos, Israel (1510) | Lost 0-2 | -181482 |
| 4extended | 557 | Navarro Del Dujo, Carlos (1482) | Won 2-1 | +181500 |
| 5extended | 514 | Holzweiss, Ralf (1626) | Lost 1-2 | -161484 |
| 6extended | 525 | Ranilla, Sergio (1483) | Won 2-1 | +181502 |
| 7extended | 457 | Broens, Christian (1500) | Won 2-0 | +181520 |
| 8extended | 442 | Fuentes Ortiz, Jose Luis (1518) | Lost 1-2 | -181502 |
| 9extended | 434 | Garcia Sanchez, Ignacio (1501) | Won 2-0 | +181520 |
| top | average opponent: 1511record: 5-4 | new rating: 1520 | ||