Kawaguchi, Akifumi
Current rating: 1477
| Grand Prix Hiroshima 2011 (ISD standard) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 253 | Mizuno, Akimitsu (1289) | Won 2-0 | +141530 |
| 2standard | 40 | Ken S., (1500) | Won 2-1 | +181548 |
| 3standard | 48 | Hiroki N., (1537) | Won 2-0 | +171565 |
| 4standard | 31 | Hitomi, Masaaki (1453) | Lost 0-2 | -201545 |
| 5standard | 73 | Hirayama, Atsushi (1562) | Lost 0-2 | -171528 |
| 6standard | 197 | Yoshimori, Sho (1769) | Lost 0-2 | -141514 |
| 7standard | 196 | Saeki, Katsuhisa (1496) | Lost 0-2 | -181496 |
| 8standard | 198 | Yonezaki, Daisuke (1465) | Lost 0-2 | -191477 |
| top | average opponent: 1509record: 3-5 | new rating: 1477 | ||
| Grand Prix Kyoto 2007 (PLC standard) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 58 | Nishimura, Takuya (1500) | Won 2-1 | +181535 |
| 2standard | 91 | Nakazuka, Yuuki (1474) | Won 2-0 | +161551 |
| 3standard | 52 | Ikeda, Yuuichirou (1609) | Lost 1-2 | -161535 |
| 4standard | 182 | Gokan, Masaki (1519) | Won 2-0 | +171552 |
| 5standard | 98 | Kabeshita, Yoshito (1486) | Lost 1-2 | -191533 |
| 6standard | 139 | Mori, Junpei (1596) | Lost 0-2 | -171516 |
| top | average opponent: 1531record: 3-3 | new rating: 1516 | ||
| Grand Prix Hiroshima 2001 (INV limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 116 | Ushirosyouji, Takeshi (1500) | Won 2-1 | +181518 |
| 2sealed | 87 | Yamanaka, Toshihisa (1466) | Won 2-1 | +171535 |
| 3sealed | 39 | Yamaguchi, Teruyuki (1534) | Won 2-0 | +181553 |
| 4sealed | 18 | Morita, Masahiko (1509) | Lost 0-2 | -191534 |
| 5sealed | 38 | Mayuzumi, Shinichi (1569) | Lost 0-2 | -171517 |
| top | average opponent: 1516record: 3-2 | new rating: 1517 | ||