Usami, Yukihiro
Current rating: 1574
| Grand Prix Shizuoka 2001 (ODY limited) | starting rating: 1539 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 49 | Kurisu, Takashi (1633) | Draw 1-1 | +21541 |
| 3sealed | 116 | Ishikawa, Masaki (1536) | Lost 0-2 | -181523 |
| 4sealed | 209 | Ota, Akira (1449) | Lost 0-2 | -201503 |
| 5sealed | 244 | Otsuka, Masaya (1464) | Won 2-0 | +181521 |
| 6sealed | 171 | Ishida, Toshiaki (1536) | Won 2-0 | +181539 |
| 7sealed | 124 | Matsumoto, Kazutaka (1518) | Won 2-1 | +171556 |
| 8sealed | 87 | Yaoita, Akihiro (1505) | Won 2-1 | +181574 |
| top | average opponent: 1520record: 4-2-1 | new rating: 1574 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 224 | Sumitomo, Hiroyuki (1482) | Lost 0-2 | -191483 |
| 3block | 479 | Oiwa, Tadashi (1499) | Won 2-0 | +191502 |
| 4block | 356 | Yamashita, Yui (1517) | Won 2-1 | +181520 |
| 5block | 221 | Anabuki, Kazuhisa (1516) | Won 2-1 | +181538 |
| 6block | 105 | Yamada, Tsutomu (1567) | Lost 1-2 | -181520 |
| 7block | 174 | Yamasaki, Mitsunori (1535) | Won 2-0 | +191539 |
| 8block | 113 | Okabe, Takahiro (1522) | Won 2-1 | +171556 |
| 9block | 86 | Adachi, Takatsugu (1588) | Lost 1-2 | -171539 |
| top | average opponent: 1528record: 5-3 | new rating: 1539 | ||
| Grand Prix Kyoto 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 7 | Izumiguchi, Tokiya (1518) | Won 2-0 | +181518 |
| 3extended | 129 | Tsuji, Yukinori (1536) | Lost 1-2 | -171501 |
| 4extended | 86 | Okada, Takashi (1518) | Draw 1-1 | 01501 |
| 5extended | 141 | Shirai, Makoto (1500) | Won 2-0 | +181519 |
| 6extended | 26 | Okamoto, Jin (1511) | Lost 1-2 | -181501 |
| 7extended | 99 | Yabe, Yosuke (1520) | Lost 1-2 | -181483 |
| 8extended | 106 | Fujii, Takahiro (1517) | Won 2-0 | +191502 |
| top | average opponent: 1517record: 3-3-1 | new rating: 1502 | ||