Okuda, Koushi
Current rating: 1369
| Grand Prix Kobe 2008 (Lorwyn block) | starting rating: 1392 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 264 | Akita, Naoto (1464) | Lost 0-2 | -171375 |
| 2block | 267 | Nakano, Hiroaki (1523) | Lost 1-2 | -151360 |
| 3block | 352 | Yoshida, Tetsuhide (1464) | Draw 1-1 | +11361 |
| 4block | 361 | Narumiya, Ryuuma (1452) | Won 2-0 | +201381 |
| 5block | 301 | Yamasaki, Sadaharu (1361) | Lost 0-2 | -181363 |
| 6block | 287 | Tanaka, Yousuke (1583) | Won 2-1 | +221385 |
| 7block | 229 | Satou, Rin (1502) | Lost 0-2 | -161369 |
| top | average opponent: 1478record: 2-4-1 | new rating: 1369 | ||
| Grand Prix Kyoto 2007 (PLC standard) | starting rating: 1397 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 47 | Adachi, Ryosuke (1518) | Lost 0-1 | -161381 |
| 2standard | 331 | Kubo, Masahiro (1448) | Draw 1-1 | +21383 |
| 3standard | 316 | Nakagawa, Yukihiro (1616) | Lost 1-2 | -141369 |
| 4standard | 377 | Nishimura, Seiichi (1444) | Lost 1-2 | -171352 |
| 5standard | 344 | Fujimoto, Takehiro (Hyogo) (1430) | Draw 1-1 | +21354 |
| 6standard | 303 | Mochizuki, Kazuhiro (1392) | Lost 0-2 | -181336 |
| 7standard | 255 | Kobayashi, Hiroaki (1427) | Won 2-1 | +201356 |
| 8standard | 209 | Yoshimura, Motoki (1358) | Won 2-0 | +181374 |
| 9standard | 171 | Tokura, Mikihiro (1348) | Won 2-1 | +181392 |
| top | average opponent: 1442record: 3-4-2 | new rating: 1392 | ||
| Grand Prix Kyoto 2003 (LGN limited) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 62 | Jikumaru, Yonekazu (1500) | Won 2-1 | +191482 |
| 2sealed | 155 | Nakashiro, Mizuki (1533) | Lost 1-2 | -171465 |
| 3sealed | 202 | Hayashi, Hiroki (1569) | Lost 0-2 | -161449 |
| 4sealed | 210 | Sasaki, Tsuyoshi (1484) | Lost 0-2 | -181431 |
| 5sealed | 235 | Nakayama, Takashi (1462) | Won 2-1 | +191450 |
| 6sealed | 198 | Yoshikawa, Hiroshi (1503) | Lost 0-2 | -171433 |
| 7sealed | 167 | Hagiwara, Shiho (1431) | Lost 1-2 | -181415 |
| 8sealed | 81 | Ikeda, Tomohiro (1445) | Lost 1-2 | -181397 |
| top | average opponent: 1491record: 2-6 | new rating: 1397 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 174 | Tanioka, Yukinobu (1500) | Won 2-1 | +181518 |
| 2block | 125 | Hirabayashi, Ryuta (1500) | Lost 1-2 | -181500 |
| 3block | 305 | Suzuki, Fumio (1466) | Lost 1-2 | -191481 |
| 4block | 516 | Makihara, Takuya (1481) | Lost 1-2 | -181463 |
| top | average opponent: 1487record: 1-3 | new rating: 1463 | ||