Niwa, Takashi
Current rating: 1497
Record: 35-33-7 (GP) / 8-11-2 (professional)
Pro Tour Los Angeles 1998Pro Tour Rome 1998Grand Prix Kobe 2001Grand Prix Hong Kong 2001Grand Prix Sendai 2001Grand Prix Fukuoka 2002Grand Prix Taipei 2002Grand Prix Sapporo 2002Pro Tour Houston 2002Grand Prix Kyoto 2003Grand Prix Yokohama 2003Grand Prix Shizuoka 2003Grand Prix Okayama 2004Grand Prix Sendai 2004Grand Prix Yokohama 2004
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 170 | Sato, Minoru (1500) | Lost 1-2 | -191501 |
| 2sealed | 255 | Kondou, Hiroaki (1446) | Won 2-1 | +171518 |
| 3sealed | 178 | Deyama, Hirofumi (1370) | Lost 1-2 | -201498 |
| 4sealed | 278 | Yoshikuni, Mitsuyuki (1485) | Draw 1-1 | -11497 |
| top | average opponent: 1450record: 1-2-1 | new rating: 1497 | ||
| Grand Prix Sendai 2004 (DST limited) | starting rating: 1513 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 113 | Takano, Hirota (1500) | Won 2-1 | +171530 |
| 2sealed | 40 | Kaji, Tomohiro (1768) | Lost 1-2 | -131517 |
| 3sealed | 171 | Kanazawa, Isao (1500) | Won 2-1 | +171534 |
| 4sealed | 86 | Onodera, Naozumi (1521) | Won 2-0 | +181552 |
| 5sealed | 87 | Mishima, Yuuichirou (1557) | Won 2-0 | +181570 |
| 6sealed | 18 | Fujihira, Taro (1634) | Lost 0-2 | -171553 |
| 7sealed | 49 | Yoshikawa, Yuusuke (1635) | Lost 0-2 | -161537 |
| 8sealed | 91 | Kikuchi, Yuuji (1575) | Lost 1-2 | -171520 |
| top | average opponent: 1586record: 4-4 | new rating: 1520 | ||
| Grand Prix Okayama 2004 (extended) | starting rating: 1514 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 52 | Mizuno, Akimitsu (1469) | Won 2-0 | +171531 |
| 3extended | 29 | Nakashiro, Mizuki (1571) | Won 2-0 | +191550 |
| 4extended | 19 | Tashima, Chihiro (1500) | Draw 1-1 | -11549 |
| 5extended | 26 | Kurihara, Shingou (1582) | Lost 1-2 | -171532 |
| 6extended | 57 | Kawahara, Takayuki (1469) | Lost 0-1 | -191513 |
| top | average opponent: 1518record: 2-2-1 | new rating: 1513 | ||
| Grand Prix Shizuoka 2003 (MRD limited) | starting rating: 1528 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 10 | Mori, Junpei (1558) | Won 2-0 | +191547 |
| 3sealed | 59 | Kataoka, Kazuyuki (1689) | Won 2-1 | +201567 |
| 4sealed | 50 | Sakuma, Toshimitsu (1575) | Lost 1-2 | -171550 |
| 5sealed | 61 | Kakumae, Teruya (1598) | Lost 0-2 | -181532 |
| 6sealed | 108 | Nose, Koji (1525) | Lost 0-2 | -181514 |
| top | average opponent: 1589record: 2-3 | new rating: 1514 | ||
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 3block | 77 | Nagao, Takuya (1536) | Won 2-1 | +191503 |
| 4block | 2 | Kunugi, Ryou (1521) | Won 2-1 | +181521 |
| 5block | 8 | Terasawa, Kazuya (1774) | Lost 1-2 | -131508 |
| 6block | 97 | Muramatsu, Daisuke (1550) | Won 2-0 | +181526 |
| 7block | 15 | Mochizuki, Yuki (1470) | Won 2-0 | +171543 |
| 8block | 18 | Yamaguchi, Teruyuki (1637) | Won 2-0 | +201563 |
| 9block | 9 | Ohara, Yoshirou (1615) | Lost 1-2 | -171546 |
| 10block | 25 | Ishimaru, Ken (1564) | Lost 0-2 | -181528 |
| top | average opponent: 1583record: 5-3 | new rating: 1528 | ||
| Grand Prix Kyoto 2003 (LGN limited) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 163 | Ohara, Takashi (1518) | Lost 0-2 | -181500 |
| 3sealed | 154 | Saitou, Takahiro (1606) | Lost 0-2 | -161484 |
| top | average opponent: 1562record: 0-2 | new rating: 1484 | ||
| Pro Tour Houston 2002 (extended) | starting rating: 1539 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 136 | Tenenbaum, Amiel (1891) | Won 2-0 | +241563 |
| 2extended | 20 | Dove, Michael (1646) | Lost 1-2 | -171546 |
| 3extended | 72 | Stevenson, Craig (1665) | Won 2-0 | +211567 |
| 4extended | 46 | Gindy, Charles (1593) | Lost 0-2 | -181549 |
| 5extended | 82 | Mello, Patrick (1833) | Lost 1-2 | -131536 |
| 6extended | 95 | Torng, Christophe (1509) | Lost 1-2 | -181518 |
| 7extended | 103 | Harada, Hiroshi (1524) | Draw 0-0 | 01518 |
| top | average opponent: 1666record: 2-4-1 | new rating: 1518 | ||
| Grand Prix Sapporo 2002 (Odyssey block) | starting rating: 1523 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 15 | Fukuchi, Takahiro (1526) | Lost 1-2 | -181505 |
| 3block | 163 | Tomizawa, Masanori (1500) | Won 2-1 | +181523 |
| 4block | 84 | Oomiya, Akira (1466) | Won 2-0 | +171540 |
| 5block | 76 | Kaneko, Yuki (1519) | Won 2-0 | +181558 |
| 6block | 24 | Atsuta, Nao (1521) | Won 2-0 | +171575 |
| 7block | 8 | Minami, Masashi (1648) | Lost 1-2 | -171558 |
| 8block | 86 | Komuro, Shuu (1477) | Lost 0-2 | -191539 |
| top | average opponent: 1522record: 4-3 | new rating: 1539 | ||
| Grand Prix Taipei 2002 (JUD standard) | starting rating: 1571 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 25 | Ikeda, Kei (1629) | Won 2-1 | +191590 |
| 3standard | 17 | Shi, Shenyee (1538) | Lost 0-2 | -191571 |
| 4standard | 47 | Gen, Tommy San Jer (1518) | Won 2-0 | +171588 |
| 5standard | 43 | Yang, Fu Yun (1503) | Lost 0-2 | -201568 |
| 6standard | 46 | Hsieh, Xiao Zen (1483) | Won 2-1 | +171585 |
| 7standard | 36 | Hong, Hao Ting (1438) | Won 2-0 | +151600 |
| 8standard | 15 | Liu, Marco Kwang-Ju (1507) | Lost 1-2 | -201580 |
| 9standard | 25 | Huang, Alex (1537) | Lost 1-2 | -181562 |
| 10standard | 31 | Kobashi, Motoki (1515) | Draw 1-1 | -11561 |
| 11standard | 30 | Li, Partick (1507) | Lost 1-2 | -191542 |
| 12standard | 31 | Yang, Taylor (1498) | Lost 1-2 | -191523 |
| top | average opponent: 1516record: 4-6-1 | new rating: 1523 | ||
| Grand Prix Fukuoka 2002 (TOR limited) | starting rating: 1539 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 69 | Watanabe, Shinji (1480) | Won 2-1 | +171556 |
| 3sealed | 62 | Kageyama, Tarou (1494) | Lost 0-2 | -201536 |
| 4sealed | 95 | Wang, Ming Chee (1526) | Won 2-1 | +181554 |
| 5sealed | 71 | Inoue, Takeshi (1518) | Lost 0-2 | -181536 |
| 6sealed | 109 | Sato, Makoto (1522) | Won 2-0 | +171553 |
| 7sealed | 76 | Kim, Jang-hong (1521) | Won 2-1 | +181571 |
| top | average opponent: 1510record: 4-2 | new rating: 1571 | ||
| Grand Prix Sendai 2001 (extended) | starting rating: 1537 | |||
| round | table | opponent (rating) | result | Δrating |
| 3extended | 46 | Noda, Koji (1582) | Draw 1-1 | +11538 |
| 4extended | 61 | Adachi, Shingo (1597) | Draw 1-1 | +11539 |
| 5extended | 94 | Kaplan, Lain (1535) | Lost 0-2 | -181521 |
| 6extended | 124 | Sugahara, Hideyuki (1518) | Won 1-0 | +181539 |
| 7extended | 88 | Hayashi, Chikara (1527) | Lost 0-2 | -191520 |
| 8extended | 96 | Takeyama, Shigemichi (1537) | Won 1-0 | +191539 |
| top | average opponent: 1549record: 2-2-2 | new rating: 1539 | ||
| Grand Prix Hong Kong 2001 (ODY limited) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 35 | Wong, Koon Hay (1518) | Lost 0-1 | -181501 |
| 3sealed | 38 | hung, ying kei (1500) | Won 2-0 | +181519 |
| 4sealed | 42 | Yung, Ying Kit (1518) | Lost 0-2 | -181501 |
| 5sealed | 57 | Baeyens, Mark (1483) | Won 2-0 | +181519 |
| 6sealed | 48 | Tsui, Wai Kin (1515) | Won 2-0 | +181537 |
| top | average opponent: 1507record: 3-2 | new rating: 1537 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 161 | Suita, Kazunari (1500) | Draw 1-1 | 01482 |
| 3block | 246 | Nishikawa, Takahito (1518) | Won 2-1 | +191501 |
| 4block | 141 | Kaji, Tetsuya (1519) | Won 2-1 | +181519 |
| 5block | 66 | Okada, Yoshiyuki (1535) | Draw 1-1 | 01519 |
| 6block | 159 | Tsuchiya, Heinrich (1488) | Lost 0-2 | -181501 |
| 7block | 252 | Fukui, Hiroyuki (1504) | Won 2-0 | +181519 |
| 8block | 171 | Matsuda, Issui (1553) | Lost 0-2 | -181501 |
| 9block | 171 | Hidaka, Ayumi (1500) | Won 2-1 | +181519 |
| top | average opponent: 1515record: 4-2-2 | new rating: 1519 | ||
| Pro Tour Rome 1998 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 68 | Sochon, Michael (1551) | Lost 0-0 | -171483 |
| 2extended | 88 | Fehrentz, Thorsten (1447) | Lost 0-0 | -191464 |
| 3extended | 114 | Brunello, Massimo (1463) | Won 0-0 | +181482 |
| 4extended | 82 | Aroutiounian, Jean (1483) | Lost 0-0 | -181464 |
| 5extended | 112 | Maxwell, Zaid (1464) | Won 0-0 | +181482 |
| 6extended | 88 | Chapin, Patrick (1437) | Won 0-0 | +171499 |
| 7extended | 67 | Gieling, Vincent (1505) | Lost 0-0 | -171482 |
| top | average opponent: 1479record: 3-4 | new rating: 1482 | ||
| Pro Tour Los Angeles 1998 (Tempest block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 101 | Drevillon, Herve (1500) | Lost 0-0 | -181482 |
| 2block | 125 | Jensen, Niels Sanders (1482) | Won 0-0 | +181500 |
| 3block | 118 | Rottiers, Antoine (1500) | Lost 0-0 | -181482 |
| 4block | 102 | Ibamoto, Masami (1482) | Draw 0-0 | 01482 |
| 5block | 117 | Macke, Will (1482) | Won 0-0 | +181500 |
| 6block | 83 | Shears, Steven (1500) | Won 0-0 | +181518 |
| 7block | 64 | Borer, Terry (1518) | Lost 0-0 | -181500 |
| top | average opponent: 1495record: 3-3-1 | new rating: 1500 | ||