Tatsuno, Masanori
Current rating: 1465
Record: 1-3
| Grand Prix Yokohama 2010 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 299 | Seki, Fujio (1500) | Lost 1-2 | -181482 |
| 2extended | 359 | Hamanaka, Keita (1482) | Won 2-0 | +181500 |
| 3extended | 301 | Iritani, Kenichi (1539) | Lost 0-2 | -171483 |
| 4extended | 425 | Ogawa, Ryota (1480) | Lost 1-2 | -181465 |
| average opponent: 1500record: 1-3 | new rating: 1465 | |||