Niwa, Takeshi
Current rating: 1460
Record: 27-32
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 255 | Muramatsu, Wataru (1500) | Lost 1-2 | -171464 |
| 2standard | 281 | Yoshida, Mitsutaka (1136) | Won 2-0 | +121476 |
| 3standard | 265 | Endo, Shuta (1469) | Won 2-1 | +181494 |
| 4standard | 255 | Abe, Michio (1517) | Lost 1-2 | -181476 |
| 5standard | 224 | Kurusu, Kazuki (1563) | Lost 0-2 | -161460 |
| top | average opponent: 1437record: 2-3 | new rating: 1460 | ||
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1411 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 432 | Imamura, Daisuke (1500) | Won 2-0 | +201431 |
| 2standard | 152 | Nakano, Fumiki (1642) | Won 2-0 | +221453 |
| 3standard | 312 | Kurokawa, Yuusuke (1539) | Lost 1-2 | -171436 |
| 4standard | 310 | Taya, Kentaro (1518) | Won 2-0 | +201456 |
| 5standard | 321 | Kawaguchi, Akira (1548) | Won 2-0 | +201476 |
| 6standard | 70 | Itou, Tomoya (1567) | Lost 0-2 | -171459 |
| 7standard | 326 | Nagai, Yuuki (1460) | Lost 1-2 | -181441 |
| 8standard | 289 | Tateyama, Eiji (1426) | Won 2-1 | +181459 |
| 9standard | 218 | Kudo, Koichi (1702) | Won 2-1 | +221481 |
| top | average opponent: 1545record: 6-3 | new rating: 1481 | ||
| Grand Prix Kobe 2012 (DKA limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 306 | Aoyanagi, Toshihiko (1446) | Lost 1-2 | -181446 |
| 2sealed | 378 | Kanda, Satoshi (1559) | Lost 1-2 | -161430 |
| 3sealed | 474 | Uesugi, Fumiya (1419) | Lost 1-2 | -191411 |
| top | average opponent: 1474record: 0-3 | new rating: 1411 | ||
| Grand Prix Kobe 2009 (extended) | starting rating: 1459 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 62 | Kamei, Toru (1421) | Lost 1-2 | -191440 |
| 2extended | 202 | Saitou, Eiji (1493) | Lost 0-2 | -171423 |
| 3extended | 227 | Inamine, Moriaki (1462) | Won 2-1 | +191442 |
| 4extended | 186 | Hishida, Akinori (1480) | Lost 1-2 | -181424 |
| 5extended | 233 | Shibata, Daisuke (1383) | Won 2-0 | +181442 |
| 6extended | 189 | Muroi, Daisuke (1485) | Lost 1-2 | -181424 |
| 7extended | 37 | Beniyama, Hiroki (1468) | Won 2-1 | +191443 |
| 8extended | 54 | Takeda, Kazuki (1592) | Won 2-0 | +211464 |
| top | average opponent: 1473record: 4-4 | new rating: 1464 | ||
| Grand Prix Okayama 2008 (ALA limited) | starting rating: 1493 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 246 | Itou, Takanori (1443) | Lost 0-0 | -191474 |
| 2sealed | 269 | Kunimatsu, Kazuto (1465) | Lost 1-2 | -181456 |
| 3sealed | 255 | Obayashi, Makoto (1453) | Lost 0-2 | -181438 |
| 4sealed | 273 | aoki, yasuo (1447) | Won 2-1 | +181456 |
| 5sealed | 228 | itaya, daiki (1463) | Won 2-0 | +191475 |
| 6sealed | 97 | Kimura, Kazuaki (1600) | Lost 0-2 | -161459 |
| top | average opponent: 1478record: 2-4 | new rating: 1459 | ||
| Grand Prix Kyoto 2007 (PLC standard) | starting rating: 1420 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 293 | Higashi, Takao (1500) | Won 2-1 | +191439 |
| 2standard | 153 | Itou, Yusuke (1536) | Won 2-1 | +201459 |
| 3standard | 9 | Suzuki, Mikito (1521) | Lost 0-2 | -171442 |
| 4standard | 142 | Tsuboyama, Shuta (1517) | Won 2-1 | +201462 |
| 5standard | 132 | Miyawaki, Takahiro (1499) | Won 2-0 | +181480 |
| 6standard | 55 | Sakurai, Yuu (1547) | Won 2-1 | +191499 |
| 7standard | 46 | Yorita, Masashi (1545) | Won 2-0 | +191518 |
| 8standard | 10 | Takahashi, Yuta (1700) | Lost 0-2 | -141504 |
| 9standard | 54 | Wada, Atsushi (1590) | Lost 0-2 | -171487 |
| 10standard | 37 | Se, Atsuo (1382) | Won 2-1 | +161503 |
| 11standard | 60 | Honnami, Tomoyuki (1659) | Lost 0-2 | -151488 |
| 12standard | 1 | Tanaka, Yu (1529) | Lost 0-2 | -171471 |
| 13standard | 26 | Nakajima, Tomoya (1650) | Won 2-1 | +211492 |
| 14standard | 53 | Imai, Hideaki (1491) | Won 2-1 | +181510 |
| 15standard | 42 | Mori, Haruaki (1585) | Lost 1-2 | -171493 |
| top | average opponent: 1550record: 9-6 | new rating: 1493 | ||
| Grand Prix Okayama 2004 (extended) | starting rating: 1411 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 17 | Mitani, Shinya (1465) | Won 2-0 | +191430 |
| 2extended | 59 | Tsujimoto, Hideki (1634) | Lost 0-2 | -141416 |
| 3extended | 124 | Yoshinobu, Takashi (1453) | Won 2-1 | +181434 |
| 4extended | 59 | Nakashiro, Mizuki (1553) | Lost 1-2 | -161418 |
| 5extended | 127 | Yamasaki, Toshihiro (1437) | Won 2-0 | +191437 |
| 6extended | 108 | Okada, Takuya (1491) | Lost 1-2 | -171420 |
| top | average opponent: 1505record: 3-3 | new rating: 1420 | ||
| Grand Prix Kyoto 2003 (LGN limited) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 184 | Mitsuhashi, Shou (1500) | Lost 0-2 | -171446 |
| 2sealed | 295 | Nakayama, Takashi (1482) | Lost 0-2 | -171429 |
| 3sealed | 280 | Yano, Ryuji (1446) | Lost 1-2 | -181411 |
| top | average opponent: 1476record: 0-3 | new rating: 1411 | ||
| Grand Prix Kyoto 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 39 | Yamamoto, Kazuki (1500) | Lost 0-2 | -181482 |
| 2extended | 264 | Sumino, Hironori (1482) | Won 2-1 | +181500 |
| 3extended | 273 | Eura, Hiroki (1465) | Lost 0-2 | -191481 |
| 4extended | 257 | Asai, Tatsuyuki (1482) | Lost 1-2 | -181463 |
| top | average opponent: 1482record: 1-3 | new rating: 1463 | ||