Yoshida, Kouki
Current rating: 1599
Record: 23-17-1
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1608 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 305 | Tezuka, Yuuki (1495) | Lost 1-2 | -201588 |
| 3standard | 489 | Iwazaki, Yuuta (1585) | Won 2-1 | +181606 |
| 4standard | 374 | Satou, Naoki (1550) | Lost 0-2 | -191587 |
| 5standard | 524 | Sano, Kunihide (1503) | Lost 0-2 | -191568 |
| 6standard | 581 | Sashida, Tomoro (1477) | Won 2-0 | +161584 |
| 7standard | 474 | Sato, Kimihiko (1590) | Lost 0-2 | -181566 |
| 8standard | 389 | Yuge, Tatsurou (1468) | Won 2-1 | +161582 |
| 9standard | 334 | Ishihara, Takashi (1533) | Won 2-0 | +171599 |
| top | average opponent: 1525record: 4-4 | new rating: 1599 | ||
| Grand Prix Kobe 2009 (extended) | starting rating: 1608 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 149 | Yoshida, Shinsuke (1405) | Won 2-0 | +141622 |
| 2extended | 135 | Iwasaki, Yuusuke (1839) | Won 2-0 | +221644 |
| 3extended | 5 | Shimada, Hiroya (1615) | Lost 0-2 | -191625 |
| 4extended | 155 | Suzuki, Takaaki (1723) | Won 2-0 | +201645 |
| 5extended | 70 | Yoshida, Hiroshi (1730) | Lost 0-2 | -161629 |
| 6extended | 115 | Kusadani, Takehiko (1557) | Lost 0-2 | -201609 |
| 7extended | 24 | Inoue, Junji (1582) | Won 2-0 | +181627 |
| 8extended | 6 | Saito, Tomoya (1590) | Lost 0-2 | -191608 |
| top | average opponent: 1630record: 4-4 | new rating: 1608 | ||
| Grand Prix Okayama 2008 (ALA limited) | starting rating: 1578 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 135 | Minobe, Yoshihiro (1500) | Lost 0-0 | -201558 |
| 2sealed | 174 | Yamamoto, Kazuhide (1446) | Won 2-0 | +161574 |
| 3sealed | 192 | Mizutani, Yuki (1458) | Won 2-0 | +161590 |
| 4sealed | 113 | Yuba, Hirofumi (1517) | Won 2-0 | +171607 |
| 5sealed | 84 | Hirabayashi, Kazuya (1836) | Won 2-1 | +221629 |
| 6sealed | 51 | Omori, Tomoaki (1710) | Lost 1-2 | -171612 |
| 7sealed | 146 | Ushirosyouji, Takeshi (1470) | Won 2-1 | +161628 |
| 8sealed | 2 | Gen, Takatoshi (1509) | Lost 0-2 | -201608 |
| top | average opponent: 1556record: 5-3 | new rating: 1608 | ||
| Grand Prix Kobe 2008 (Lorwyn block) | starting rating: 1525 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 51 | Kanazawa, Hiroyasu (1600) | Lost 1-2 | -161509 |
| 2block | 239 | Toyama, Junichiro (1406) | Won 2-1 | +161525 |
| 3block | 157 | Oohashi, Toshiyuki (1518) | Lost 0-2 | -181507 |
| 4block | 347 | Katayama, Chihiro (1483) | Lost 1-2 | -191488 |
| 5block | 325 | Ishikawa, Yoshitaka (1432) | Won 2-1 | +171505 |
| 6block | 266 | Niimi, Kiyoaki (1606) | Won 2-0 | +201525 |
| 7block | 195 | Takine, Kenji (1453) | Won 2-1 | +171542 |
| 8block | 148 | Ozawa, Tetsuya (1565) | Won 2-0 | +181560 |
| 9block | 85 | Wada, Shouhei (1536) | Won 2-0 | +181578 |
| top | average opponent: 1511record: 6-3 | new rating: 1578 | ||
| Grand Prix Hiroshima 2006 (CSP limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 9 | Imai, Takashi (1521) | Won 2-0 | +181518 |
| 2sealed | 65 | Okada, Wataru (1699) | Lost 0-2 | -141504 |
| 3sealed | 70 | Sugimura, Yoshiyasu (1566) | Won 2-1 | +191523 |
| 4sealed | 118 | Kaji, Tetsuya (1561) | Lost 1-2 | -181505 |
| 5sealed | 104 | Shikata, Nobuaki (1579) | Draw 1-1 | +21507 |
| 6sealed | 109 | Tsuji, Mariko (1506) | Won 2-0 | +181525 |
| 7sealed | 87 | Kawate, Makoto (1501) | Lost 1-2 | -191506 |
| 8sealed | 9 | Kaneko, Masanori (1553) | Won 2-0 | +191525 |
| top | average opponent: 1561record: 4-3-1 | new rating: 1525 | ||