Piatti, Julio Cesar
Current rating: 1519
Record: 17-17-2
| Grand Prix Porto Alegre 2015 (modern) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 157 | Araujo, Flavio (1537) | Won 2-1 | +191517 |
| 2modern | 109 | Barciella, Francisco (1629) | Lost 0-2 | -161501 |
| 3modern | 191 | de Melo Franco, Lucas Lanza (1500) | Draw 1-1 | 01501 |
| 4modern | 256 | Dalmolin Da Silva, Matheus (1499) | Lost 0-2 | -181483 |
| 5modern | 300 | Schurhaus Hyeda, Andre (1487) | Won 2-0 | +181501 |
| 6modern | 227 | Renan De Fraga Moreira, (1499) | Won 2-1 | +181519 |
| 7modern | 158 | Guimaraes, Maycon (1536) | Won 2-1 | +181537 |
| 8modern | 111 | Mantovanelli, Gabriel (1500) | Lost 1-2 | -181519 |
| top | average opponent: 1523record: 4-3-1 | new rating: 1519 | ||
| Grand Prix Sao Paulo 2015 (DTK standard) | starting rating: 1497 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 117 | Naraya Basto De Sa, Davi (1500) | Won 2-0 | +181515 |
| 2standard | 186 | Martinez Pereira Dias, Bruno (1529) | Won 2-1 | +181533 |
| 3standard | 226 | Moraga Galdames, Jorge Pablo (1596) | Won 2-0 | +191552 |
| 4standard | 16 | Rosenmann, Thiago (1554) | Lost 0-2 | -181534 |
| 5standard | 144 | Merces, Felipe (1539) | Lost 1-2 | -181516 |
| 6standard | 198 | Colar, Bruno (1517) | Lost 0-2 | -181498 |
| top | average opponent: 1539record: 3-3 | new rating: 1498 | ||
| Grand Prix Buenos Aires 2014 (BNG standard) | starting rating: 1534 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 262 | Guzman, Francisco (1518) | Draw 1-1 | 01534 |
| 2standard | 219 | Gimenez, Marcos (1500) | Lost 1-2 | -191515 |
| 3standard | 356 | Marcusa, Christian (1483) | Lost 0-2 | -181497 |
| top | average opponent: 1500record: 0-2-1 | new rating: 1497 | ||
| Grand Prix Rio de Janeiro 2013 (GTC standard) | starting rating: 1491 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 119 | Studart, Rafael (1640) | Lost 0-2 | -151476 |
| 3standard | 140 | Passos Almeida, Rodolfo (1498) | Won 2-1 | +191495 |
| 4standard | 161 | Santos, Romulo (1521) | Lost 1-2 | -181477 |
| 5standard | 188 | Silva, Saulo (1501) | Won 2-1 | +181495 |
| 6standard | 121 | Cardoso Oliveira, Marcos Adriano (1518) | Won 2-0 | +191514 |
| 7standard | 71 | Paredes, Marcos (1567) | Lost 0-2 | -171497 |
| 8standard | 106 | Tanaka, Thiago Augusto (1517) | Won 2-1 | +181515 |
| 9standard | 87 | Carvalho, Helder (1558) | Won 2-0 | +191534 |
| top | average opponent: 1540record: 5-3 | new rating: 1534 | ||
| Grand Prix Sao Paulo 2012 (M13 limited) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 162 | Aguirre, Andres (1518) | Won 2-0 | +191465 |
| 3sealed | 30 | Franco Junior, Cassiano (1544) | Lost 0-2 | -171448 |
| 4sealed | 88 | Pereira Queiroz De Lima, Fernando (1519) | Won 2-1 | +201468 |
| 5sealed | 124 | Heerdt Veiga, Bruno (1529) | Lost 1-2 | -171451 |
| 6sealed | 161 | Miyamoto, Henrique (1519) | Won 2-0 | +191470 |
| 7sealed | 99 | dos santos Junior, Abias (1536) | Won 2-0 | +191489 |
| 8sealed | 49 | Kroth, Tomas (1553) | Lost 0-2 | -171472 |
| 9sealed | 74 | Bitner Yoshimoto, Henrique (1536) | Won 2-0 | +191491 |
| top | average opponent: 1532record: 5-3 | new rating: 1491 | ||
| Grand Prix Sao Paulo 2009 (ARB standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 154 | Quiroz, Ignacio A (1519) | Lost 0-2 | -181482 |
| 2standard | 187 | Kayo Kiyan, Danilo (1482) | Lost 0-2 | -181464 |
| 3standard | 276 | Cruz, Anderson (1419) | Lost 0-2 | -181446 |
| top | average opponent: 1473record: 0-3 | new rating: 1446 | ||