Portugal, Marco
Current rating: 1616
Record: 23-14-3
| Grand Prix Sao Paulo 2019 (modern) | starting rating: 1675 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 28 | Thomaz Junior, Mauricio (1548) | Won 2-0 | +161691 |
| 2modern | 143 | Mendonca De Siqueira, Lucas (1518) | Lost 1-2 | -211670 |
| 3modern | 282 | Lessa, Ismael (1532) | Lost 0-2 | -211649 |
| 4modern | 475 | Rodrigues, Weverton (1480) | Lost 0-2 | -211628 |
| 5modern | 539 | Olteanu, Alexandru (1461) | Won 2-1 | +151643 |
| 6modern | 472 | Farias, Andre Luiz (1482) | Draw 1-1 | -31640 |
| 7modern | 372 | Vega Parra, Francisco (1423) | Lost 0-1 | -211619 |
| 8modern | 332 | Watanabe, Thiago (1462) | Draw 1-1 | -31616 |
| top | average opponent: 1488record: 2-4-2 | new rating: 1616 | ||
| Grand Prix Sao Paulo 2018 (modern) | starting rating: 1659 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 281 | Zucatelli Nossa, Gabriel (1448) | Won 2-0 | +141673 |
| 2modern | 134 | Alves Pereira, Pedro Henrique (1518) | Lost 1-2 | -201653 |
| 3modern | 305 | Borges De Almeida, Igor (1433) | Won 2-0 | +141667 |
| 4modern | 288 | Sato, Jean (1674) | Lost 0-2 | -181649 |
| 5modern | 432 | Fujarra Abou Hala, Ralph (1468) | Lost 1-2 | -211628 |
| 6modern | 463 | Cataia, Daniel Fernando Maciel (1482) | Won 2-0 | +151643 |
| 7modern | 376 | Rodrigues Silva Borges, Rene (1605) | Won 2-1 | +171660 |
| 8modern | 280 | Hirayama, Alessandro (1505) | Won 2-0 | +151675 |
| top | average opponent: 1517record: 5-3 | new rating: 1675 | ||
| Grand Prix Sao Paulo 2017 (modern) | starting rating: 1664 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 389 | Conceicao Doile, Leonardo (1453) | Won 2-1 | +141678 |
| 2modern | 201 | Zilio De Morais, Felipe (1520) | Won 2-1 | +151693 |
| 3modern | 77 | Campos Conti, Rafael (1621) | Lost 1-2 | -191674 |
| 4modern | 285 | Do Vale Bezerra, Pedro (1517) | Lost 0-2 | -211653 |
| 5modern | 250 | Neiva, Bruno (1499) | Won 2-0 | +161669 |
| 6modern | 312 | Dias Correia, Felipe (1520) | Lost 1-2 | -211648 |
| 7modern | 302 | Costa, Adriano (1499) | Won 2-1 | +151663 |
| 8modern | 239 | Ferreira, Joao Victor (1594) | Won 2-1 | +171680 |
| 9modern | 223 | Sartori, Pedro Caruana (1536) | Lost 0-2 | -211659 |
| top | average opponent: 1529record: 5-4 | new rating: 1659 | ||
| Grand Prix Porto Alegre 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 243 | Hubner, Jean (1502) | Won 2-0 | +181518 |
| 2modern | 159 | Lima, Rafael (1518) | Won 2-0 | +181536 |
| 3modern | 84 | Fagundes, Josejane (1628) | Won 2-0 | +201556 |
| 4modern | 12 | Daher Dias, Willian (1643) | Won 2-1 | +191575 |
| 5modern | 23 | Soares Tannus, Adriano (1527) | Won 2-0 | +171592 |
| 6modern | 7 | Villela, Artur (2035) | Won 2-1 | +261618 |
| 7modern | 5 | Rodrigues Cavalcante, Marcelo (1639) | Lost 0-2 | -181600 |
| 8modern | 25 | Marquez, Diego (1584) | Won 2-0 | +181618 |
| 9modern | 11 | Casatti, Vagner William (1944) | Lost 0-2 | -121606 |
| 10modern | 12 | Burghardt Amaral, Caio Sergio (1678) | Lost 0-0 | -171589 |
| 11modern | 27 | Acres Teixeira, Erton (1544) | Won 1-0 | +171606 |
| 12modern | 21 | Conrado, Alexandre (1556) | Won 2-0 | +171623 |
| 13modern | 15 | Cortez, Paulo Ricardo (1947) | Draw 0-0 | +61629 |
| 14modern | 15 | da Costa, Ivo Rafael (1622) | Won 2-0 | +181647 |
| 15modern | 11 | Galvao Pires, Daniel Felipe (1604) | Won 2-0 | +171664 |
| top | average opponent: 1665record: 11-3-1 | new rating: 1664 | ||