Guimaro, Mauro
Current rating: 1616
| Grand Prix Lisbon 2002 (extended) | starting rating: 1550 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 28 | Antonio, Aderito (1501) | Draw 0-0 | -11549 |
| 2extended | 155 | Arlati, Claudio Giuseppe (1447) | Won 2-0 | +161565 |
| 3extended | 89 | Ferreira, Jorge (1593) | Lost 0-2 | -171548 |
| 4extended | 187 | Vinagre, Antonio (1499) | Draw 1-1 | -11547 |
| 5extended | 238 | Vidal, Ricardo (1484) | Won 2-0 | +171564 |
| 6extended | 176 | Carapinha, Nono (1501) | Won 2-0 | +161580 |
| 7extended | 125 | Gomes, Gustavo (1601) | Won 2-1 | +191599 |
| 8extended | 86 | Ramiao, Ricardo (1580) | Won 2-0 | +171616 |
| top | average opponent: 1526record: 5-1-2 | new rating: 1616 | ||
| Grand Prix Porto 2000 (PCY limited) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 267 | Mendes, Ricardo (1500) | Won 2-1 | +181517 |
| 2sealed | 18 | Silva, Loic (1518) | Won 2-0 | +181535 |
| 3sealed | 64 | Tafula, Miguel (1505) | Won 2-0 | +181553 |
| 4sealed | 1 | Rafael, Joaquin (1421) | Lost 0-0 | -211532 |
| 5sealed | 59 | Verlinden, Stefaan (1491) | Lost 0-2 | -181514 |
| 6sealed | 107 | Justo, Ruben (1518) | Won 2-0 | +181532 |
| 7sealed | 62 | Venancio, Nuno (1536) | Won 2-1 | +181550 |
| top | average opponent: 1498record: 5-2 | new rating: 1550 | ||
| Grand Prix Madrid 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 53 | Venegas, Fernando (1500) | Won 2-0 | +181518 |
| 2extended | 13 | Davila, Rafael (1518) | Draw 1-1 | 01518 |
| 3extended | 50 | Vitali, Andrea (1494) | Lost 0-2 | -181500 |
| 4extended | 90 | de las Ribas, Eduardo (1500) | Draw 0-0 | 01500 |
| 5extended | 114 | Yury, Florencio (1483) | Won 2-0 | +171517 |
| 6extended | 84 | Castro, Miguel 2 (1519) | Lost 1-2 | -181499 |
| top | average opponent: 1502record: 2-2-2 | new rating: 1499 | ||