Koizumi, Hiroshi
Current rating: 1508
Record: 3-3-1
| Grand Prix Kyoto 2007 (PLC standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 33 | Okita, Yuji (1547) | Lost 1-2 | -171483 |
| 2standard | 291 | Shibuya, Takuma (1584) | Won 2-1 | +201503 |
| 3standard | 271 | Nomura, Eiji (1709) | Lost 0-2 | -151488 |
| 4standard | 300 | Okutomi, Hiromitsu (1409) | Won 2-1 | +171505 |
| 5standard | 187 | Katayama, Hidenori (1712) | Lost 0-1 | -141491 |
| 6standard | 266 | Satou, Takahisa (1479) | Won 2-1 | +171508 |
| 7standard | 216 | Tabata, Hiroshi (1498) | Draw 1-1 | 01508 |
| average opponent: 1563record: 3-3-1 | new rating: 1508 | |||