Pedro S. A,
Current rating: 1500
Record: 4-4-1
| Grand Prix Rio de Janeiro 2013 (GTC standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 177 | Feitosa Coelho, Unknow (1500) | Lost 1-2 | -181482 |
| 2standard | 184 | Galhardo, Carlos E (1483) | Lost 0-2 | -181464 |
| 3standard | 306 | Araujo, Alice (1446) | Won 2-0 | +181482 |
| 4standard | 244 | Borges, Dante (1486) | Won 2-1 | +181500 |
| 5standard | 191 | Filho, Renato Silva (1500) | Draw 1-1 | 01500 |
| 6standard | 198 | Quijada Bahamondes, Alejandro (1506) | Won 2-0 | +181518 |
| 7standard | 142 | Marques Martins, Marcel (1539) | Won 2-0 | +181536 |
| 8standard | 101 | Miranda, Diogo (1537) | Lost 1-2 | -181518 |
| 9standard | 118 | Lacerda, Felipe (1518) | Lost 0-2 | -181500 |
| average opponent: 1502record: 4-4-1 | new rating: 1500 | |||