Viana, Pedro
Current rating: 1592
Record: 19-12-3
| Grand Prix Bilbao 2005 (extended) | starting rating: 1605 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 527 | Zarza, Manuel (1500) | Draw 1-1 | -21603 |
| 2extended | 478 | Rios, Jose (1489) | Won 1-0 | +161619 |
| 3extended | 434 | Rodriguez-Triana Carba, (1518) | Won 2-0 | +161635 |
| 4extended | 412 | Searles, James (1565) | Lost 0-2 | -191616 |
| 5extended | 440 | Martin, Jose (1519) | Won 2-0 | +161632 |
| 6extended | 423 | Martin, Pablo (1543) | Lost 1-2 | -201612 |
| 7extended | 454 | Camacho, Miguel (1500) | Lost 0-2 | -201592 |
| top | average opponent: 1519record: 3-3-1 | new rating: 1592 | ||
| Grand Prix Madrid 2004 (DST limited) | starting rating: 1617 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 207 | Hernandez, Jose [ESP] (1504) | Won 2-1 | +161633 |
| 2sealed | 45 | Loureiro, Carlos Manuel (1518) | Lost 0-2 | -201613 |
| 3sealed | 389 | Garcia, Luis [ESP] (1536) | Won 2-1 | +171630 |
| 4sealed | 213 | Guijarro, Daniel (1501) | Lost 1-2 | -211609 |
| 5sealed | 284 | Amaral, Paulo (1507) | Won 2-0 | +171626 |
| 6sealed | 257 | Arbide, Inaki (1478) | Lost 1-2 | -211605 |
| top | average opponent: 1507record: 3-3 | new rating: 1605 | ||
| Grand Prix Seville 2003 (LGN limited) | starting rating: 1587 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 40 | Garcia, Javier [ESP] (1500) | Won 2-0 | +161603 |
| 2sealed | 111 | Moreno Rodriguez, Antonio (1518) | Won 2-0 | +171620 |
| 3sealed | 15 | Rueda, Francisco (1563) | Lost 1-2 | -191601 |
| 4sealed | 105 | Barracha, Joao (1555) | Won 2-0 | +171618 |
| 5sealed | 135 | Perez, Zenon (1651) | Won 2-1 | +191637 |
| 6sealed | 52 | Unfried, Jorg (1566) | Lost 0-2 | -201617 |
| top | average opponent: 1559record: 4-2 | new rating: 1617 | ||
| Grand Prix Lisbon 2002 (extended) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 55 | Martins, Emanuel (1500) | Won 2-0 | +181536 |
| 2extended | 27 | Pereira, Bruno (1501) | Won 2-1 | +171553 |
| 3extended | 38 | Vidal Plaza, Joaquin (1572) | Draw 1-1 | 01553 |
| 4extended | 85 | Pacifici, Guido (1637) | Lost 0-2 | -161537 |
| 5extended | 135 | Horta, Rui (1516) | Won 2-0 | +181555 |
| 6extended | 91 | Coelho, Paulo (1455) | Draw 1-1 | -21553 |
| 7extended | 123 | Goncalves, Pedro (1505) | Won 2-1 | +171570 |
| 8extended | 83 | Padial, Antonio (1519) | Won 1-0 | +171587 |
| top | average opponent: 1526record: 5-1-2 | new rating: 1587 | ||
| Grand Prix Porto 2000 (PCY limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 265 | Payan, Miguel (1500) | Won 2-0 | +181518 |
| 2sealed | 40 | Duarte, Ricardo (1518) | Won 2-0 | +181536 |
| 3sealed | 35 | Vericat Vidal, Sergi (1536) | Lost 0-2 | -181518 |
| 4sealed | 137 | Alexandre, Filipe (1518) | Won 0-0 | +181536 |
| 5sealed | 79 | Saavedra, Roberto (1535) | Lost 0-2 | -181518 |
| 6sealed | 98 | Dores, Pedro (1518) | Lost 0-2 | -181500 |
| 7sealed | 139 | Arques, Pedro (1500) | Won 2-0 | +181518 |
| top | average opponent: 1518record: 4-3 | new rating: 1518 | ||