Da Costa Santin, Giovanni
Current rating: 1466
Record: 4-6
| Grand Prix Sao Paulo 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 22 | Onofre Santiago B, Mark9091 (1500) | Lost 0-2 | -181482 |
| 2modern | 537 | Ricci, Caio (1554) | Won 2-0 | +191501 |
| 3modern | 539 | Rocha Dutra, Juliano (1570) | Lost 0-2 | -161485 |
| 4modern | 591 | Costa, Fabio (1481) | Lost 1-2 | -191466 |
| average opponent: 1526record: 1-3 | new rating: 1466 | |||
| Grand Prix Sao Paulo 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 361 | Pedroli, Fabio (1500) | Won 2-1 | +181518 |
| 2modern | 125 | Perrini, Pedro (1518) | Lost 0-2 | -181500 |
| 3modern | 360 | Guerra, Guilherme (1500) | Won 2-0 | +181518 |
| 4modern | 324 | Martins Moreira Neto, Leopoldo (1606) | Lost 0-2 | -161502 |
| 5modern | 308 | Sherring, Paulo (1499) | Won 2-1 | +181520 |
| 6modern | 273 | De Oliveira Tavares, Tiago (1431) | Lost 0-2 | -201500 |
| average opponent: 1509record: 3-3 | new rating: 1500 | |||