Mendes Castanha, Julio Cesar
Current rating: 1570
Record: 10-6-1
| Grand Prix Sao Paulo 2018 (modern) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 539 | Sales Junior, Joao Jorge (1445) | Won 2-0 | +161552 |
| 2modern | 296 | Cavassin Jayme, Cassius (1558) | Lost 1-2 | -181534 |
| 3modern | 380 | Casagrande Junior, Humberto (1551) | Won 2-0 | +191553 |
| 4modern | 246 | Grassato, Vitor (1643) | Lost 1-2 | -171536 |
| 5modern | 410 | Pereira De Melo, Wallace (1500) | Won 2-1 | +181554 |
| 6modern | 236 | Antonio Dos Santos, Wagner (1519) | Won 2-1 | +171571 |
| 7modern | 177 | Molina, Marcelo [ARG] (1573) | Lost 1-2 | -181553 |
| 8modern | 265 | Zaniboni, Henrique (1518) | Won 2-0 | +171570 |
| average opponent: 1539record: 5-3 | new rating: 1570 | |||
| Grand Prix Porto Alegre 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 172 | de Raga Queiroz, Gabriel (1489) | Lost 0-2 | -181482 |
| 2modern | 256 | B. Souza, Nikolas (1482) | Won 2-0 | +181500 |
| 3modern | 192 | Vargas, Jairo (1501) | Won 2-1 | +181518 |
| 4modern | 95 | Eccel, Pedro (1498) | Lost 0-2 | -191499 |
| 5modern | 239 | De Campos Dorini, Ricardo (1520) | Won 2-0 | +191518 |
| 6modern | 151 | Aubin, Maxime (1522) | Draw 1-1 | 01518 |
| 7modern | 159 | Goveia, Guilherme (1517) | Won 2-0 | +181536 |
| 8modern | 118 | Antunes Rubert, William (1536) | Lost 0-2 | -181518 |
| 9modern | 123 | Baptista Dieter, Felipe (1517) | Won 2-1 | +181536 |
| average opponent: 1509record: 5-3-1 | new rating: 1536 | |||