Piratelli, Guilherme
Current rating: 1507
| Grand Prix Sao Paulo 2018 (modern) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 502 | Savattero, Bruno (1500) | Lost 1-2 | -181504 |
| 2modern | 599 | Sinti, Aurelio (1450) | Won 2-0 | +171521 |
| 3modern | 544 | Colar, Bruno (1560) | Won 2-0 | +191540 |
| 4modern | 164 | Gabriel Da Silva, Luccas (1535) | Won 2-0 | +181558 |
| 5modern | 195 | Nakazora Abe, Allison (1849) | Lost 0-2 | -131545 |
| 6modern | 354 | Martinez, Raphael (1518) | Lost 0-2 | -191526 |
| 7modern | 302 | Blanco, Silvio (1424) | Lost 0-2 | -191507 |
| top | average opponent: 1548record: 3-4 | new rating: 1507 | ||
| Grand Prix Sao Paulo 2015 (DTK standard) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 231 | Torres, Thiago (1500) | Won 2-0 | +191482 |
| 2standard | 107 | Barbosa Destri Junior, Vilmar (1624) | Lost 0-2 | -151467 |
| 3standard | 302 | Medeiros, Joao Pedro (1501) | Won 2-1 | +181485 |
| 4standard | 216 | Henrique Camargo Suria, (1518) | Lost 0-2 | -171468 |
| 5standard | 341 | Silva, Thiago (1451) | Won 2-1 | +181486 |
| 6standard | 176 | Silva, Paulo (1499) | Won 2-1 | +181504 |
| 7standard | 187 | Sampaio Da Silva, Diogo (1526) | Won 2-1 | +181522 |
| 8standard | 79 | Libonatti, Mariano (1544) | Won 2-1 | +191541 |
| 9standard | 37 | Sanchez, Maximiliano (1534) | Lost 1-2 | -191522 |
| top | average opponent: 1522record: 6-3 | new rating: 1522 | ||
| Grand Prix Rio de Janeiro 2013 (GTC standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 105 | de Lima, Marcus (1500) | Won 2-1 | +181518 |
| 2standard | 121 | Pardal, Vinicius (1518) | Lost 0-2 | -181500 |
| 3standard | 156 | Lucero, Fabian (1467) | Lost 0-2 | -191481 |
| 4standard | 289 | Nascimento, Wandson (1481) | Lost 1-2 | -181463 |
| top | average opponent: 1492record: 1-3 | new rating: 1463 | ||