Feres, Roberto
Current rating: 1386
| Grand Prix Sao Paulo 2018 (modern) | starting rating: 1435 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 194 | Cesar Matos, Aldo (1500) | Lost 1-2 | -161419 |
| 2modern | 427 | Borges De Almeida, Diego (1481) | Won 2-0 | +191438 |
| 3modern | 451 | Kowalski, Rafael (1499) | Lost 0-2 | -171421 |
| 4modern | 605 | Martins, Gustavo (1431) | Lost 1-2 | -181403 |
| 5modern | 573 | Munoz Carpintero, Diego (1438) | Lost 0-2 | -171386 |
| top | average opponent: 1470record: 1-4 | new rating: 1386 | ||
| Grand Prix Sao Paulo 2017 (modern) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 403 | Milan, Leandro (1479) | Won 2-0 | +181501 |
| 2modern | 294 | Alexandre Sa Antunes Da Silva, Carlos (1518) | Lost 1-2 | -171484 |
| 3modern | 284 | Santos Navarro, Thales (1541) | Lost 0-2 | -171467 |
| 4modern | 409 | Malamut, Bernardo (1480) | Won 2-0 | +181485 |
| 5modern | 382 | Hattori, Fernando (1498) | Draw 1-1 | 01485 |
| 6modern | 342 | Teixeira Junior, Edson (1634) | Lost 0-2 | -151470 |
| 7modern | 406 | Silva, Igor Magno (1549) | Lost 0-2 | -171453 |
| 8modern | 395 | Conduta, Marcelo (1465) | Lost 0-2 | -181435 |
| top | average opponent: 1520record: 2-5-1 | new rating: 1435 | ||
| Grand Prix Sao Paulo 2015 (DTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 404 | dos Santos Pinto, Paulo Henrique (1573) | Lost 0-2 | -171483 |
| top | record: 0-1 | new rating: 1483 | ||