Nikkuni, Fumihito
Current rating: 1648
Record: 40-30-3
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1611 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 720 | Maruyama, Shouta (1485) | Won 2-0 | +161627 |
| 2sealed | 823 | Iwamoto, Reo (1624) | Won 2-0 | +181645 |
| 3sealed | 683 | Kuroda, Masashiro (1976) | Won 2-0 | +231668 |
| 4sealed | 720 | Taru, Genki (1721) | Won 2-1 | +191687 |
| 5sealed | 676 | Tamada, Ryoichi (1747) | Lost 0-2 | -171670 |
| 6sealed | 697 | Nam, Kyung Hwan (1415) | Lost 0-2 | -221648 |
| top | average opponent: 1661record: 4-2 | new rating: 1648 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1554 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 17 | Nagao, Takuya (1451) | Won 2-0 | +161570 |
| 2modern | 287 | Hayashi, Hiroki (1724) | Won 2-1 | +211591 |
| 3modern | 22 | Komuro, Shuu (1841) | Lost 1-2 | -131578 |
| 4modern | 441 | Yoshimura, Motoki (1368) | Won 2-0 | +141592 |
| 5modern | 178 | Chen, Liang (1786) | Lost 0-2 | -151577 |
| 6modern | 293 | Matsuura, Hiroyuki (1551) | Won 2-1 | +181595 |
| 7modern | 207 | Shiozaki, Toshinori (1517) | Won 2-1 | +161611 |
| 8modern | 159 | Morita, Yo (1567) | Won 2-0 | +181629 |
| 9modern | 109 | Satake, Yukihiro (1650) | Lost 1-2 | -181611 |
| top | average opponent: 1606record: 6-3 | new rating: 1611 | ||
| Grand Prix Kobe 2012 (DKA limited) | starting rating: 1564 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 177 | Tanaka, Ryu (1500) | Lost 0-2 | -191545 |
| 2sealed | 309 | Ichikawa, Yuuki (1484) | Lost 1-2 | -191526 |
| 3sealed | 449 | Kawano, Yuuki (1499) | Won 2-0 | +181544 |
| 4sealed | 482 | Yuusuke I, (1486) | Won 2-0 | +171561 |
| 5sealed | 365 | Arakane, Daisuke (1450) | Won 2-0 | +161577 |
| 6sealed | 260 | Takada, Ryo (1325) | Lost 0-2 | -231554 |
| top | average opponent: 1457record: 3-3 | new rating: 1554 | ||
| Grand Prix Yokohama 2010 (extended) | starting rating: 1589 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 145 | Mochizuki, Takayuki (1482) | Won 2-0 | +161605 |
| 2extended | 30 | Cai, Chenguang (1641) | Won 2-1 | +191624 |
| 3extended | 42 | Ikeda, Kazuki (1536) | Lost 1-2 | -201604 |
| 4extended | 205 | Satou, Masataka (1481) | Lost 0-2 | -201584 |
| 5extended | 322 | Muraoka, Yuki (1516) | Lost 0-2 | -201564 |
| top | average opponent: 1531record: 2-3 | new rating: 1564 | ||
| Grand Prix Yamagata 2006 (TSP limited) | starting rating: 1637 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 114 | Toida, Kiyoshi (1469) | Won 2-1 | +151652 |
| 2sealed | 65 | Kumagai, Takuo (1518) | Lost 1-2 | -211631 |
| 3sealed | 74 | Otsuka, Hiroki (1450) | Lost 0-2 | -211610 |
| 4sealed | 149 | Fuji, Yuusuke (1430) | Lost 1-2 | -211589 |
| top | average opponent: 1467record: 1-3 | new rating: 1589 | ||
| Grand Prix Niigata 2005 (Kamigawa block) | starting rating: 1632 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 16 | Tanaka, Akira (1489) | Won 2-1 | +151647 |
| 2block | 2 | Tozuka, Kouta (1518) | Won 2-0 | +161663 |
| 3block | 68 | Aoki, Ryousuke (1494) | Lost 1-2 | -211642 |
| 4block | 106 | Nakano, Fumiki (1643) | Won 2-1 | +181660 |
| 5block | 56 | Koyama, Kenta (1604) | Lost 1-2 | -191641 |
| 6block | 106 | Tazawa, Jun (1571) | Won 2-0 | +161657 |
| 7block | 70 | Ozawa, Takeshi (1513) | Lost 0-2 | -201637 |
| top | average opponent: 1547record: 4-3 | new rating: 1637 | ||
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1555 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 109 | Nakagawa, Yu (1516) | Won 2-0 | +171572 |
| 2sealed | 119 | Akamatsu, Yoshiki (1514) | Lost 0-2 | -191553 |
| 3sealed | 232 | Katayama, Hidenori (1470) | Won 2-1 | +161569 |
| 4sealed | 133 | Tsumura, Kenji (1702) | Won 2-0 | +211590 |
| 5sealed | 121 | Ozawa, Takeshi (1529) | Won 2-0 | +171607 |
| 6sealed | 85 | Oikawa, Mutsuki (1544) | Won 2-1 | +161623 |
| 7sealed | 18 | Ozawa, Takahiro (1645) | Won 2-1 | +191642 |
| 8sealed | 15 | Asahara, Akira (1937) | Draw 1-1 | +51647 |
| 9rochester | 1 | Shiwaku, Tsuyoshi (1660) | Won 2-1 | +181665 |
| 10rochester | 27 | Okada, Seiji (1724) | Won 2-0 | +191684 |
| 11rochester | 21 | Takasaki, Yuichi (1683) | Lost 0-2 | -181666 |
| 12rochester | 17 | Chijimi, Keiichi (1673) | Lost 0-1 | -181648 |
| 13rochester | 4 | Iwakura, Tatsuro (1644) | Draw 1-1 | 01648 |
| 14rochester | 25 | Suzuki, Masatsuna (1719) | Lost 0-2 | -161632 |
| top | average opponent: 1640record: 8-4-2 | new rating: 1632 | ||
| Grand Prix Sendai 2004 (DST limited) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 145 | Nakajima, Daisuke (1486) | Won 2-0 | +181538 |
| 2sealed | 11 | Takahashi, Yoshiyuki (1539) | Won 2-0 | +181556 |
| 3sealed | 14 | Usuki, Ken (1536) | Lost 1-2 | -181538 |
| 4sealed | 135 | Iizuka, Shun (1498) | Lost 0-2 | -191519 |
| 5sealed | 164 | Yamaguchi, Shinya (1463) | Won 2-1 | +171536 |
| 6sealed | 108 | Ishii, Hayato (1586) | Won 2-1 | +191555 |
| 7sealed | 82 | Murakami, Ken (1528) | Lost 0-2 | -191536 |
| 8sealed | 75 | Niwa, Kohei (1554) | Won 2-0 | +191555 |
| top | average opponent: 1524record: 5-3 | new rating: 1555 | ||
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 232 | Mori, Satoshi (1500) | Won 2-1 | +181538 |
| 2block | 195 | Komiya, Tadayoshi (1703) | Lost 0-2 | -151523 |
| 3block | 223 | Fujino, Kimihiro (1511) | Lost 0-2 | -181505 |
| 4block | 272 | Sumita, Masanobu (1599) | Won 2-0 | +191524 |
| 5block | 234 | Miwa, Tatsuya (1498) | Lost 1-2 | -181506 |
| 6block | 272 | Nakagawa, Tsukasa (1378) | Lost 0-2 | -211485 |
| 7block | 267 | Nakaaze, Yuji (1448) | Won 2-1 | +181503 |
| 8block | 234 | Yamamoto, Takahiro (1486) | Won 2-1 | +171520 |
| top | average opponent: 1515record: 4-4 | new rating: 1520 | ||
| Grand Prix Sendai 2001 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 21 | Tsushima, Yusuke (1501) | Draw 1-1 | 01500 |
| 2extended | 100 | Nakazawa, Kazuhiro (1544) | Won 2-1 | +191519 |
| 3extended | 81 | Kunii, Norihiro (1517) | Won 2-0 | +181537 |
| 4extended | 59 | Wakuri, Akira (1618) | Won 2-0 | +191556 |
| 5extended | 28 | Mitsuma, Takayuki (1554) | Lost 1-2 | -181538 |
| 6extended | 64 | Kurosawa, Yoshihito (1536) | Lost 0-2 | -181520 |
| top | average opponent: 1545record: 3-2-1 | new rating: 1520 | ||