Yoshikawa, Hiroshi
Current rating: 1520
Record: 29-27-3
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 49 | Sasaki, Yuki (1413) | Won 2-0 | +161538 |
| 2sealed | 134 | Takamatsu, Hiroomi (1555) | Lost 0-2 | -171521 |
| 3sealed | 245 | Shibuya, Kouichi (1495) | Won 2-0 | +171538 |
| 4sealed | 183 | Ito, Mizuki (1517) | Won 2-0 | +181556 |
| 5sealed | 76 | Ooura, Shotaro (1564) | Lost 0-2 | -181538 |
| 6sealed | 115 | Asari, Kouzou (1537) | Won 2-0 | +181556 |
| 7sealed | 83 | Takagi, Yui (1508) | Lost 1-2 | -191537 |
| 8sealed | 3 | Tanaka, Yousuke (1569) | Lost 1-2 | -171520 |
| top | average opponent: 1520record: 4-4 | new rating: 1520 | ||
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1563 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 80 | Nishiwaki, Yousuke (1537) | Won 2-1 | +171580 |
| 2standard | 169 | Le Goff, Loys (1468) | Lost 0-2 | -201560 |
| 3standard | 301 | Nishiwaki, Kazuhisa (1554) | Lost 1-2 | -181542 |
| 4standard | 352 | Ikeda, Naoto (1458) | Lost 1-2 | -201522 |
| top | average opponent: 1504record: 1-3 | new rating: 1522 | ||
| Grand Prix Shizuoka 2003 (MRD limited) | starting rating: 1569 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 98 | Fukai, Koichi (1485) | Draw 1-1 | -11568 |
| 2sealed | 177 | Hagiwara, Yoshitaka (1500) | Lost 0-2 | -201548 |
| 3sealed | 255 | Negami, Hiroyuki (1469) | Lost 0-2 | -191529 |
| 4sealed | 271 | Tanaka, Yosuke (1465) | Won 2-0 | +171546 |
| 5sealed | 212 | Katsumata, Yuuma (1481) | Won 2-0 | +171563 |
| top | average opponent: 1480record: 2-2-1 | new rating: 1563 | ||
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1538 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 159 | Mera, Kenichi (1500) | Lost 1-2 | -191519 |
| 2block | 262 | Inoue, Masashi (1470) | Won 2-0 | +171536 |
| 3block | 161 | Toshimi, Hirokazu (1499) | Won 2-1 | +171553 |
| 4block | 143 | Ishihara, Kazutae (1502) | Won 2-0 | +171570 |
| 5block | 121 | Yasutomi, Hiroto (1548) | Lost 0-2 | -181552 |
| 6block | 163 | Ootsuki, Masahiro (1455) | Won 2-1 | +161568 |
| 7block | 87 | Hirata, Yugo (1506) | Lost 0-2 | -191549 |
| 8block | 122 | Kurisu, Takashi (1658) | Won 2-0 | +201569 |
| top | average opponent: 1517record: 5-3 | new rating: 1569 | ||
| Grand Prix Kyoto 2003 (LGN limited) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 174 | Kobashi, Motoki (1545) | Won 2-0 | +191541 |
| 2sealed | 161 | Fujimoto, Takehiro (1487) | Lost 1-2 | -191522 |
| 3sealed | 145 | Mitani, Shinya (1482) | Won 2-1 | +171539 |
| 4sealed | 73 | Nakamura, Takuji (1519) | Lost 0-2 | -181521 |
| 5sealed | 156 | Orihara, Jun (1559) | Lost 0-2 | -181503 |
| 6sealed | 198 | Okuda, Koushi (1450) | Won 2-0 | +171520 |
| 7sealed | 123 | Muranaka, Nobutoshi (1483) | Won 2-1 | +181538 |
| top | average opponent: 1503record: 4-3 | new rating: 1538 | ||
| Grand Prix Hiroshima 2003 (extended) | starting rating: 1526 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 27 | Komura, Nobuhiro (1500) | Won 2-0 | +171543 |
| 2extended | 62 | Yanagawa, Tomoyuki (1520) | Draw 1-1 | 01543 |
| 3extended | 72 | Nakashima, Kentarou (1501) | Lost 0-1 | -191524 |
| 4extended | 125 | Yasukawa, Kazuhide (1433) | Lost 0-2 | -201504 |
| 5extended | 150 | Sakuma, Takeshi (1499) | Won 2-0 | +181522 |
| top | average opponent: 1491record: 2-2-1 | new rating: 1522 | ||
| Grand Prix Utsunomiya 2002 (ONS rochester) | starting rating: 1509 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 67 | Morimoto, Manabu (1511) | Won 2-1 | +191528 |
| 2sealed | 125 | Shoji, Tatsuro (1518) | Won 2-0 | +171545 |
| 3sealed | 89 | Ito, Yoko (1536) | Lost 0-2 | -181527 |
| 4sealed | 122 | Seki, Kazuhiko (1500) | Lost 0-2 | -181509 |
| 5sealed | 186 | Kushibe, Toshiki (1453) | Won 2-0 | +171526 |
| top | average opponent: 1504record: 3-2 | new rating: 1526 | ||
| Grand Prix Shizuoka 2001 (ODY limited) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 240 | Murakami, Yuki (1634) | Lost 0-2 | -151489 |
| 2sealed | 300 | Yamamoto, Takao(Kawasaki) (1483) | Won 2-0 | +181507 |
| 3sealed | 204 | Imamura, Akihiko (1498) | Won 2-0 | +181525 |
| 4sealed | 92 | Higono, Naoki (1586) | Won 1-0 | +191544 |
| 5sealed | 117 | Suzuki, Masatsuna (1517) | Lost 1-2 | -191525 |
| 6sealed | 141 | Suzuki, Takaaki (1654) | Lost 1-2 | -161509 |
| top | average opponent: 1562record: 3-3 | new rating: 1509 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 451 | Watanabe, Shinji (1520) | Lost 0-2 | -171447 |
| 2block | 556 | Yoshinobu, Takashi (1482) | Won 2-0 | +191466 |
| 3block | 505 | Miyamoto, Koji (1500) | Won 2-1 | +191485 |
| 4block | 192 | Nagai, Kenji (1518) | Draw 1-1 | 01485 |
| 5block | 276 | Matsushita, Masakazu (1518) | Won 2-1 | +191504 |
| 6block | 177 | Takahashi, Makoto (1536) | Won 2-1 | +181522 |
| 7block | 112 | Fujita, Osamu (1524) | Lost 0-2 | -181504 |
| top | average opponent: 1514record: 4-2-1 | new rating: 1504 | ||
| Grand Prix Kyoto 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 28 | Hobo, Masatoshi (1500) | Won 2-0 | +181518 |
| 2extended | 29 | Watanabe, Kazunori (1518) | Lost 0-2 | -181500 |
| 3extended | 138 | Igawa, Yoshihiro (1500) | Lost 1-2 | -181482 |
| 4extended | 236 | Yoshikawa, Yuusuke (1501) | Lost 0-2 | -181464 |
| top | average opponent: 1505record: 1-3 | new rating: 1464 | ||