ishitsuka, syuuhei
Current rating: 1427
Record: 1-5-1
| Grand Prix Yokohama 2010 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 286 | iida, yuusaku (1500) | Lost 0-2 | -181482 |
| 2extended | 451 | French, Michael (1473) | Draw 1-1 | 01482 |
| 3extended | 382 | Shimoeda, Satoshi (1446) | Lost 0-2 | -191463 |
| 4extended | 473 | Mizuhara, Yoshitaka (1463) | Lost 0-2 | -181445 |
| 5extended | 434 | Kajiyama, Yu (1457) | Lost 1-2 | -181427 |
| 6extended | 373 | Matsuyama, Takenori (1397) | Lost 0-2 | -181409 |
| 7extended | 292 | Hashimoto, Kouichi (1391) | Won 2-0 | +181427 |
| average opponent: 1447record: 1-5-1 | new rating: 1427 | |||