Doi, Koji
Current rating: 1550
| Grand Prix Kyoto 2003 (LGN limited) | starting rating: 1528 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 191 | Inoue, Junichi (1537) | Won 2-1 | +181546 |
| 2sealed | 92 | Tashima, Chihiro (1517) | Won 2-0 | +181564 |
| 3sealed | 90 | Takakuwa, Akihiro (1709) | Lost 1-2 | -161548 |
| 4sealed | 148 | Sekine, Takeshi (1657) | Lost 0-2 | -161532 |
| 5sealed | 193 | Koyama, Masashi (1523) | Won 2-0 | +181550 |
| top | average opponent: 1589record: 3-2 | new rating: 1550 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 315 | Oizaki, Takahiro (1500) | Lost 0-2 | -191534 |
| 2block | 419 | Nakao, Munenari (1482) | Won 2-0 | +171551 |
| 3block | 317 | Matsubayashi, Hidetada (1500) | Won 2-1 | +171568 |
| 4block | 247 | Atake, Tomoki (1497) | Lost 0-2 | -191549 |
| 5block | 314 | Nitta, Tomoaki (1501) | Won 2-0 | +171566 |
| 6block | 310 | Yagi, Hiroyuki (1517) | Lost 0-2 | -191547 |
| 7block | 280 | Honjo, Kotaro (1484) | Lost 0-2 | -191528 |
| top | average opponent: 1497record: 3-4 | new rating: 1528 | ||
| Grand Prix Kyoto 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 172 | Suga, Takeichi (1500) | Won 2-1 | +181518 |
| 2extended | 59 | Kawaguchi, Tsukasa (1518) | Lost 0-2 | -181500 |
| 3extended | 152 | Mori, Hisatoshi (1500) | Won 2-1 | +181518 |
| 4extended | 169 | Yamasaki, Satoru (1500) | Won 2-0 | +181536 |
| 5extended | 96 | Kai, Tsubasa (1535) | Won 2-1 | +181554 |
| 6extended | 48 | Kishishita, Kunihiko (1462) | Won 2-1 | +161570 |
| 7extended | 35 | Shimizu, Hiroyuki (1571) | Won 2-0 | +181588 |
| 8extended | 30 | Imamichi, Takashi (1589) | ID | 01588 |
| 9extended | 21 | Hayashi, Shinsuke (1593) | Won 2-0 | +181606 |
| 10extended | 10 | Kagawa, Hiroyuki (1607) | Won 2-0 | +181624 |
| 11extended | 7 | Mori, Katsuhiro (1653) | Lost 0-2 | -171607 |
| 12extended | 15 | Tsukamoto, Toshiki (1657) | Lost 1-2 | -171590 |
| 13extended | 19 | Takezawa, Tsutomu (1560) | Lost 0-2 | -191571 |
| 14extended | 22 | Higaki, Takao (1585) | Lost 1-2 | -181553 |
| top | average opponent: 1559record: 8-5-1 | new rating: 1553 | ||