Kusumoto, Masahiro
Current rating: 1437
| Grand Prix Kitakyushu 2013 (M14 standard) | starting rating: 1405 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 208 | Kokubo, Kazuhiro (1500) | Lost 1-2 | -161389 |
| 2standard | 305 | Fukushima, Shungo (1409) | Won 2-1 | +181407 |
| 3standard | 355 | Koshiishi, Tadahito (1492) | Won 2-1 | +201427 |
| 4standard | 382 | Itou, Takanori (1659) | Lost 0-2 | -141413 |
| 5standard | 346 | Iki, Youichi (1479) | Won 2-1 | +191432 |
| 6standard | 346 | Kawakami, Kazuto (1743) | Lost 0-2 | -121420 |
| 7standard | 282 | Otani, Makoto (1384) | Won 2-1 | +171437 |
| top | average opponent: 1524record: 4-3 | new rating: 1437 | ||
| Grand Prix Hiroshima 2003 (extended) | starting rating: 1428 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 18 | Nakaduka, Yuki (1500) | Lost 0-2 | -171411 |
| 2extended | 149 | Okita, Kenichiro (1488) | Lost 1-2 | -161395 |
| 3extended | 167 | Yamasaki, Toshihiro (1445) | Won 2-0 | +191414 |
| 4extended | 166 | Watanabe, Shinji (1462) | Won 2-1 | +191433 |
| 5extended | 132 | Kobayashi, Masanori (1643) | Lost 1-2 | -151418 |
| 6extended | 134 | Itagaki, Yota (1504) | Won 2-0 | +201438 |
| 7extended | 108 | Kozakai, Yukio (1512) | Lost 0-2 | -171421 |
| 8extended | 93 | Nishida, Toshimasa (1535) | Lost 0-2 | -161405 |
| top | average opponent: 1511record: 3-5 | new rating: 1405 | ||
| Grand Prix Hiroshima 2001 (INV limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 99 | Ogura, Takamasa (1500) | Lost 1-2 | -181482 |
| 2sealed | 143 | Kurasawa, Kanto (1482) | Lost 0-2 | -181464 |
| 3sealed | 198 | Kuroda, Toshiyuki (1464) | Lost 0-2 | -181446 |
| 4sealed | 195 | Yamamoto, Arihiro (1445) | Lost 1-2 | -181428 |
| 5sealed | 171 | Miyahara, Naoaki (1427) | Won 2-0 | +181446 |
| 6sealed | 146 | Yamane, Masahiro (1448) | Lost 0-2 | -181428 |
| top | average opponent: 1461record: 1-5 | new rating: 1428 | ||