Kataoka, Michiaki
Current rating: 1346
| Grand Prix Hiroshima 2003 (extended) | starting rating: 1396 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 7 | Tsukahara, Yasuyuki (1413) | Lost 1-2 | -181378 |
| 2extended | 123 | Tajiri, Satoshi (1502) | Lost 0-2 | -161362 |
| 3extended | 176 | Suzuki, Fumio (1459) | Lost 1-2 | -161346 |
| top | average opponent: 1458record: 0-3 | new rating: 1346 | ||
| Grand Prix Sendai 2001 (extended) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 8 | Koen, Yusuke (1502) | Won 2-0 | +191465 |
| 2extended | 75 | Shimizu, Yasuyuki (1518) | Lost 1-2 | -171448 |
| 3extended | 146 | Endou, Takahiro (1438) | Lost 1-2 | -181430 |
| 4extended | 157 | Akiba, Masakazu (1483) | Lost 1-2 | -171413 |
| 5extended | 178 | Suzuki, Yasutomo (1465) | Lost 0-2 | -171396 |
| top | average opponent: 1481record: 1-4 | new rating: 1396 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 11 | Yamaguchi, Shoji (1500) | Lost 1-2 | -181482 |
| 2block | 396 | Higashimura, Kazuya (1481) | Lost 1-2 | -181464 |
| 3block | 551 | Sasaki, Kaoru (1464) | Lost 1-2 | -181446 |
| top | average opponent: 1482record: 0-3 | new rating: 1446 | ||