Ohnishi, Koji
Current rating: 1530
| Grand Prix Hiroshima 2003 (extended) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 65 | Nakamura, Hirobumi (1519) | Won 2-0 | +191465 |
| 3extended | 49 | Nakano, Fumiki (1623) | Won 2-0 | +211486 |
| 4extended | 26 | Momosaki, Hiroyuki (1500) | Won 2-0 | +191505 |
| 5extended | 23 | Kinoshita, Junichi (1788) | Lost 1-2 | -131492 |
| 6extended | 49 | Morimoto, Manabu (1546) | Won 2-1 | +191511 |
| 7extended | 9 | Nagaoka, Takayuki (1745) | Won 2-1 | +221533 |
| 8extended | 15 | Yuasa, Kentarou (1714) | Draw 1-1 | +31536 |
| 9extended | 13 | Tanaka, Kazuyuki (1591) | Lost 0-2 | -171519 |
| 10extended | 22 | Okita, Kenichiro (1582) | Won 2-1 | +191538 |
| 11extended | 15 | Nakano, Yoshitaka (1601) | Lost 0-2 | -171521 |
| 12extended | 22 | Ikedo, Masakazu (1580) | Draw 1-1 | +11522 |
| 13extended | 23 | Mukuno, Yuuji (1611) | Won 2-0 | +201542 |
| 14extended | 18 | Mori, Katsuhiro (1873) | Lost 0-2 | -121530 |
| top | average opponent: 1636record: 7-4-2 | new rating: 1530 | ||
| Grand Prix Fukuoka 2002 (TOR limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 33 | Nagatake, Katsumi (1499) | Lost 1-2 | -171464 |
| 2sealed | 139 | Fujimoto, Kazumasa (1482) | Lost 0-2 | -181446 |
| top | average opponent: 1491record: 0-2 | new rating: 1446 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 187 | Muto, Yuichi (1500) | Lost 1-2 | -181482 |
| 2block | 416 | Murao, Hirohiko (1482) | Lost 1-2 | -181464 |
| 3block | 607 | Nishikawa, Seigo (1464) | Won 2-0 | +181482 |
| 4block | 522 | Fujita, Gensho (1482) | Lost 0-2 | -181464 |
| 5block | 567 | Tomohiro, Yoshida (1464) | Won 2-0 | +181482 |
| 6block | 447 | Okada, Kou (1520) | Won 2-1 | +191501 |
| 7block | 323 | Toyama, Kenichi (1501) | Won 2-0 | +181519 |
| 8block | 234 | Ito, Masaki (1485) | Lost 0-2 | -191500 |
| 9block | 192 | Matsumoto, Okimasa (1468) | Lost 0-2 | -191481 |
| top | average opponent: 1485record: 4-5 | new rating: 1481 | ||