Osawa, Ricardo Yoshio
Current rating: 1481
Record: 3-4
| Grand Prix Curitiba 2001 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 50 | Jacob, Igor da Fonseca (1500) | Won 2-1 | +181518 |
| 2extended | 32 | Santos, Bruno B (1500) | Lost 0-0 | -181500 |
| 3extended | 116 | Oliveira Filho, Napoleao Cla (1500) | Lost 0-2 | -181482 |
| 4extended | 146 | Camargo Sampaio Villega, Alexandre (1481) | Won 2-0 | +181500 |
| 5extended | 101 | de Barros, Felipe Jorge (1500) | Lost 1-2 | -181482 |
| 6extended | 135 | Dallagnal, Belchior (1482) | Won 2-0 | +181500 |
| 7extended | 86 | Massaki Ikegami, Adalberto (1467) | Lost 0-2 | -191481 |
| average opponent: 1490record: 3-4 | new rating: 1481 | |||