Sumi, Kouichirou
Current rating: 1483
Record: 4-5
| Grand Prix Kyoto 2007 (PLC standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 108 | Murakami, Tatsuya (1500) | Lost 0-2 | -181482 |
| 2standard | 326 | Ito, Yuuko (1440) | Won 2-0 | +171499 |
| 3standard | 222 | Kouno, Tomohiro (1553) | Won 2-1 | +191518 |
| 4standard | 126 | Kawakami, Hiroshi (1508) | Lost 0-2 | -181500 |
| 5standard | 249 | Nomura, Masahiro (1481) | Lost 0-2 | -181482 |
| 6standard | 241 | Hirata, Shinya (1612) | Lost 0-2 | -161466 |
| 7standard | 237 | Abe, Eriko (1431) | Won 2-0 | +171483 |
| 8standard | 199 | Mera, Kenichi (1505) | Lost 0-2 | -171466 |
| 9standard | 169 | Amano, Makoto (1424) | Won 2-0 | +171483 |
| average opponent: 1495record: 4-5 | new rating: 1483 | |||