Tanaka, Toshifumi
Current rating: 1567
| Grand Prix Kyoto 2003 (LGN limited) | starting rating: 1535 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 100 | Kimura, Yoshihiro (1500) | Lost 1-2 | -191516 |
| 2sealed | 202 | Kouno, Kentarou (1480) | Won 2-0 | +181534 |
| 3sealed | 131 | Takahasi, Tooru (1501) | Won 2-0 | +171551 |
| 4sealed | 173 | Yamamoto, Yoshifumi (1515) | Won 2-1 | +171568 |
| 5sealed | 118 | Nakamura, Mizuho (1542) | Won 2-0 | +181586 |
| 6sealed | 42 | Suzuki, Masatsuna (1663) | Lost 1-2 | -171569 |
| 7sealed | 52 | Tanaka, Noboru (1500) | Won 2-1 | +171586 |
| 8sealed | 37 | Fujiwara, Satoshi (1499) | Lost 0-2 | -191567 |
| top | average opponent: 1525record: 5-3 | new rating: 1567 | ||
| Grand Prix Hiroshima 2003 (extended) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 34 | Anan, Kazuyoshi (1500) | Lost 1-2 | -181481 |
| 2extended | 121 | Ozaki, Youichirou (1449) | Won 2-0 | +181499 |
| 3extended | 82 | Yamato, Masaru (1499) | Won 2-1 | +181517 |
| 4extended | 86 | French, Michael (1518) | Lost 0-2 | -181499 |
| 5extended | 147 | Konishi, Hideaki (1462) | Won 2-0 | +171516 |
| 6extended | 102 | Tsukahara, Yasuyuki (1441) | Won 2-1 | +171533 |
| 7extended | 68 | Hashima, Takumi (1536) | Won 2-0 | +181551 |
| 8extended | 37 | Iwai, Tsuyoshi (1681) | Lost 0-2 | -161535 |
| top | average opponent: 1511record: 5-3 | new rating: 1535 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 355 | Yoshitani, Atsuki (1500) | Lost 0-2 | -181482 |
| 2block | 428 | Okada, Masami (1482) | Won 2-0 | +181500 |
| 3block | 515 | Seki, Toshihide (1500) | Won 2-0 | +181518 |
| 4block | 218 | Onuki, Takeshi (1519) | Won 2-1 | +181536 |
| 5block | 185 | Sakashita, Yuichi (1518) | Lost 0-2 | -181518 |
| 6block | 217 | Aya, Keisuke (1484) | Lost 0-2 | -191499 |
| top | average opponent: 1501record: 3-3 | new rating: 1499 | ||