Marco, Pedro
Current rating: 1551
| Grand Prix Madrid 2004 (DST limited) | starting rating: 1535 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 442 | Valera Sansano, Gines (1500) | Lost 0-2 | -181517 |
| 2sealed | 459 | Giraudeau, Gilles (1482) | Lost 0-2 | -191498 |
| 3sealed | 543 | Gorniak, Mariusz (1537) | Lost 0-2 | -171481 |
| 4sealed | 560 | Oliver Hernandez, Salvador (1446) | Won 2-0 | +171498 |
| 5sealed | 476 | Glik, Nicolas (1499) | Won 2-1 | +181516 |
| 6sealed | 402 | Garcia Gimenez, Ruben (1481) | Won 2-0 | +171533 |
| 7sealed | 286 | Casado, Juan (1504) | Won 2-0 | +181551 |
| top | average opponent: 1493record: 4-3 | new rating: 1551 | ||
| Grand Prix Porto 2000 (PCY limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 106 | O'Donnell, Xenia (1446) | Won 2-0 | +171517 |
| 2sealed | 77 | Morais, Manuel (1518) | Won 2-0 | +181535 |
| 3sealed | 74 | Balseiro, Nuno (1536) | Draw 1-1 | 01535 |
| 4sealed | 60 | Garcia, Jesus Lazaro (1518) | Won 0-0 | +171552 |
| 5sealed | 28 | Oliveira, Sonia (1602) | Lost 0-1 | -171535 |
| 6sealed | 70 | Alonso Estevez, Gena (1536) | Won 1-0 | +181553 |
| 7sealed | 50 | Valente, Carlos (1541) | Lost 0-2 | -181535 |
| top | average opponent: 1528record: 4-2-1 | new rating: 1535 | ||
| Grand Prix Barcelona 1999 (USG sealed) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 56 | Romero, Angel (1500) | Draw 0-0 | 01500 |
| 3sealed | 64 | Palacios Sanchez, Jose Luis (1498) | Won 0-0 | +181518 |
| 4sealed | 42 | Camacho, Oriol (1518) | Draw 0-0 | 01518 |
| 5sealed | 75 | Verbeken, Dirk (1518) | Won 0-0 | +181536 |
| 6sealed | 47 | Olivieri, Nicolas (1507) | Won 0-0 | +171553 |
| 7sealed | 24 | Vinagre, Antonio (1553) | Won 0-0 | +181571 |
| 8sealed | 13 | Vila, Ferran (1572) | Lost 0-0 | -181553 |
| 9sealed | 21 | Debard, Michael (1611) | Lost 0-0 | -171536 |
| 10sealed | 26 | Malveiro, Joao (1532) | Lost 0-0 | -181518 |
| 11sealed | 29 | Bonte, Jeremie (1478) | Lost 0-0 | -181500 |
| top | average opponent: 1529record: 4-4-2 | new rating: 1500 | ||