Shirosaki, Masao
Current rating: 1508
| Grand Prix Kyoto 2003 (LGN limited) | starting rating: 1546 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 41 | Imura, Satoshi (1499) | Lost 0-2 | -191527 |
| 2sealed | 190 | Inoue, Junichi (1519) | Lost 0-1 | -181509 |
| 3sealed | 300 | Tanaka, Yoshimitsu (1463) | Won 2-1 | +171526 |
| 4sealed | 250 | Sugiyama, Yuya (1533) | Lost 0-2 | -181508 |
| top | average opponent: 1504record: 1-3 | new rating: 1508 | ||
| Grand Prix Sendai 2001 (extended) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 69 | Kudo, Kaneyoshi (1500) | Draw 1-1 | 01516 |
| 2extended | 104 | Konno, Kousei (1501) | Won 2-0 | +181534 |
| 3extended | 87 | Sato, Yoshihiro (1518) | Won 1-0 | +171551 |
| 4extended | 57 | Mitsuma, Takayuki (1536) | Lost 1-2 | -181533 |
| 5extended | 105 | Hirayama, Susumu (1518) | Lost 1-2 | -181515 |
| 6extended | 127 | Takemasa, Iwao (1396) | Draw 1-1 | -21513 |
| 7extended | 126 | Mikami, Iesato (1432) | Won 2-0 | +161529 |
| 8extended | 97 | Sakurai, Yuu (1462) | Won 2-1 | +171546 |
| top | average opponent: 1483record: 4-2-2 | new rating: 1546 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 148 | Toda, Kensuke (1500) | Won 2-1 | +181518 |
| 2block | 255 | Urabe, Kodai (1518) | Won 2-1 | +181536 |
| 3block | 39 | Maruyama, Satoshi (1553) | Won 2-1 | +181554 |
| 4block | 87 | Noda, Koji (1546) | Lost 1-2 | -181536 |
| 5block | 202 | Hasegawa, Takumi (1519) | Lost 1-2 | -181518 |
| 6block | 189 | Takeiri, Go (1512) | Lost 1-2 | -181500 |
| 7block | 327 | Nagao, Hakaru (1426) | Won 2-0 | +161516 |
| 8block | 226 | Sanno, Katsuya (1501) | Won 2-0 | +181534 |
| 9block | 162 | Osawa, Takuya (1537) | Lost 0-2 | -181516 |
| top | average opponent: 1512record: 5-4 | new rating: 1516 | ||