Sakai, Kentaro
Current rating: 1499
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1488 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 27 | Sato, Shinichi (1668) | Won 2-1 | +211509 |
| 3standard | 105 | U, Kashin (1501) | Won 2-0 | +181527 |
| 4standard | 63 | Senou, Yoshiyuki (1606) | Lost 1-2 | -161511 |
| 5standard | 201 | Syouyama, Youhei (1648) | Won 2-1 | +201531 |
| 6standard | 94 | Suzuki, Takahiro (1516) | Lost 0-2 | -181513 |
| 7standard | 89 | Azuma, Motokiyo (1765) | Lost 0-2 | -141499 |
| top | average opponent: 1617record: 3-3 | new rating: 1499 | ||
| Grand Prix Kyoto 2003 (LGN limited) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 97 | Iwata, Noriaki (1540) | Won 2-0 | +191520 |
| 4sealed | 11 | Tsushima, Tomoya (1654) | Lost 1-2 | -161504 |
| 5sealed | 96 | Matsumura, Hiroyuki (1508) | Won 2-1 | +181522 |
| 6sealed | 38 | Miura, Hiroyuki (1523) | Lost 0-2 | -181504 |
| 7sealed | 81 | Kubouchi, Naoki (1599) | Lost 1-2 | -161488 |
| top | average opponent: 1565record: 2-3 | new rating: 1488 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 214 | Yanagawa, Tetsuji (1515) | Won 2-0 | +181518 |
| 3block | 52 | Fredembach, Clement (1498) | Draw 1-1 | 01518 |
| 4block | 149 | Sumita, Masanobu (1611) | Won 2-0 | +201538 |
| 5block | 68 | Kawasaki, Daisuke (1536) | Lost 0-2 | -181520 |
| 6block | 165 | Seo, Taiki (1502) | Lost 1-2 | -191501 |
| top | average opponent: 1532record: 2-2-1 | new rating: 1501 | ||