Osaki, Motohiro
Current rating: 1559
| Grand Prix Hiroshima 2003 (extended) | starting rating: 1523 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 55 | Imai, Kimio (1616) | Won 2-0 | +201543 |
| 3extended | 36 | Yamabe, Hiroya (1533) | Won 2-1 | +181561 |
| 4extended | 16 | Hanaoka, Toshifumi (1500) | Won 2-0 | +171578 |
| 5extended | 9 | Fukuba, Shintaro (1590) | Lost 0-2 | -181560 |
| 6extended | 33 | Edayoshi, Minoru (1510) | Lost 1-2 | -191541 |
| 7extended | 52 | Kuniyoshi, Yasuhiro (1521) | Won 2-0 | +181559 |
| 8extended | 28 | Yamane, Masahiro (1519) | Won 2-1 | +171576 |
| 9extended | 30 | Mihara, Makihito (1584) | Lost 1-2 | -181558 |
| 10extended | 26 | Iwasaki, Akira (1563) | Won 2-0 | +181576 |
| 11extended | 21 | Takagi, Takeshi (1630) | Lost 1-2 | -171559 |
| top | average opponent: 1557record: 6-4 | new rating: 1559 | ||
| Grand Prix Sendai 2001 (extended) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 106 | Tashiro, Yoshiaki (1517) | Won 2-0 | +181500 |
| 2extended | 40 | Horiuchi, Ikki (1518) | Won 2-0 | +191519 |
| 3extended | 52 | Douyama, Tsuyoshi (1742) | Lost 0-2 | -141505 |
| 4extended | 111 | Shibuya, Kouichi (1455) | Lost 0-2 | -191486 |
| 5extended | 119 | Aota, Hisato (1502) | Won 2-1 | +181504 |
| 6extended | 104 | Kawasaki, Mariko (1518) | Won 2-0 | +181522 |
| 7extended | 66 | Maki, Koichiro (1561) | Won 2-0 | +191541 |
| 8extended | 55 | Okada, Daisuke (1554) | Lost 0-2 | -181523 |
| top | average opponent: 1546record: 5-3 | new rating: 1523 | ||
| Grand Prix Hiroshima 2001 (INV limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 142 | Hamamoto, Kenji (1448) | Lost 1-2 | -191481 |
| 2sealed | 126 | Kodani, Ryousuke (1519) | Won 2-0 | +191500 |
| 3sealed | 73 | Ando, Hiroaki (1498) | Lost 0-2 | -181482 |
| top | average opponent: 1488record: 1-2 | new rating: 1482 | ||