Niwa, Hotaka
Current rating: 1742 (#4260)
Record: 39-23-1
| Grand Prix Yokohama 2019 (modern) | starting rating: 1718 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 138 | Takahashi, Ryunosuke (1353) | Won 2-1 | +121730 |
| 2modern | 560 | Narita, Nobushige (1501) | Won 2-1 | +141744 |
| 3modern | 365 | Bacleon, Joseph Brianne (1567) | Lost 0-2 | -211723 |
| 4modern | 602 | Sekiguchi, Kota (1621) | Won 2-0 | +161739 |
| 5modern | 356 | Kaneko, Yasuki (1594) | Lost 0-2 | -211718 |
| 6modern | 629 | Ido, Daiki (1411) | Won 2-0 | +131731 |
| 7modern | 362 | Yamamoto, Shohei8989 (1542) | Won 2-1 | +141745 |
| 8modern | 262 | Okamoto, Masahiro4209 (1575) | Won 2-0 | +151760 |
| 9modern | 128 | Sasaki, Yusuke 4501 (1732) | Lost 0-2 | -181742 |
| top | average opponent: 1544record: 6-3 | new rating: 1742 | ||
| Grand Prix Shizuoka 2018 (legacy) (legacy) | starting rating: 1609 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 124 | Tokimasa, Kyohei (1500) | Won 2-1 | +161625 |
| 2legacy | 8 | Ozawa, Tomohiko (1492) | Won 2-0 | +161641 |
| 3legacy | 153 | Kawabata, Shou8056 (1528) | Lost 1-2 | -201621 |
| 4legacy | 233 | Miyabe, Kouichi (1770) | Won 2-0 | +211642 |
| 5legacy | 191 | Kounosu, Hiroaki (1235) | Won 2-1 | +111653 |
| 6legacy | 107 | Yao, Shunsuke (1744) | Lost 1-2 | -171636 |
| 7legacy | 157 | Maruo, Yuuta (1863) | Won 2-0 | +221658 |
| 8legacy | 95 | Hasegawa, Baku (1523) | Won 2-1 | +161674 |
| 9legacy | 110 | Higuchi, Akashi (1701) | Won 2-0 | +181692 |
| 10legacy | 42 | Takeuchi, Jun (1726) | Won 2-0 | +191711 |
| 11legacy | 18 | Yamabe, Kazumi (1467) | Lost 0-2 | -221689 |
| 12legacy | 38 | Ootsuki, Masahiro (1560) | Won 2-0 | +151704 |
| 13legacy | 34 | Nakano, Akinori (1610) | Lost 0-2 | -191685 |
| 14legacy | 46 | Wong, Brian [HKG] (1617) | Won 2-0 | +161701 |
| 15legacy | 41 | Shoji, Keishi (1639) | Won 2-0 | +171718 |
| top | average opponent: 1598record: 11-4 | new rating: 1718 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1563 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 652 | Ehara, Daisuke (1395) | Won 2-1 | +151578 |
| 2standard | 543 | Kondou, Yuusuke (1516) | Lost 1-2 | -191559 |
| 3standard | 624 | Kuramoto, Yukihiro (1482) | Won 2-0 | +161575 |
| 4standard | 594 | Shin, BongGyu (1489) | Won 2-0 | +171592 |
| 5standard | 497 | Kurokawa, Yuusuke (1606) | Won 2-1 | +181610 |
| 6standard | 301 | Ogino, Junpei (1546) | Lost 1-2 | -191591 |
| 7standard | 388 | Imai, Yuuki (1499) | Lost 1-2 | -201571 |
| 8standard | 521 | Yamasaki, Rintarou (1570) | Won 2-1 | +181589 |
| 9standard | 286 | Imai, Ayato (1707) | Won 2-1 | +201609 |
| top | average opponent: 1534record: 6-3 | new rating: 1609 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 24 | Ishino, Katsunori (1482) | Won 2-0 | +181483 |
| 2legacy | 77 | Matuda, Syuuzi (1561) | Won 2-0 | +191502 |
| 3legacy | 185 | Ishiguro, Youhei (1670) | Won 2-1 | +211523 |
| 4legacy | 65 | Kimura, Takuya (1500) | Won 2-0 | +181541 |
| 5legacy | 46 | Umehara, Kei (1679) | Lost 0-2 | -161525 |
| 6legacy | 45 | Tsukuda, Takuya (1570) | Won 2-0 | +191544 |
| 7legacy | 39 | Ozaki, Hitoshi (1537) | Won 2-1 | +181562 |
| 8legacy | 10 | Morishita, Mizuki (1666) | Lost 0-2 | -161546 |
| 9legacy | 47 | Furusawa, Reona (1468) | Won 2-1 | +171563 |
| 10legacy | 99 | Kubo, Yuta (1481) | Lost 1-2 | -201543 |
| 11legacy | 88 | Murakami, Souta (1559) | Lost 0-2 | -181525 |
| 12legacy | 103 | Suzuki, Ei (1440) | Won 2-0 | +171542 |
| 13legacy | 91 | Muraoka, Hiroaki (1488) | Lost 1-2 | -191523 |
| 14legacy | 88 | Inui, Takashi (1617) | Won 2-0 | +201543 |
| 15legacy | 80 | Kajiwara, Shou (1679) | Won 2-0 | +201563 |
| top | average opponent: 1560record: 10-5 | new rating: 1563 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 154 | Toshimune, Miyake (1500) | Lost 1-2 | -171464 |
| 2modern | 339 | Imai, Satoshi (1676) | Lost 0-2 | -141450 |
| 3modern | 491 | Sekine, Kiyotaka (1344) | Won 2-1 | +161466 |
| 4modern | 388 | Suzuki, Ryo (1494) | Won 2-1 | +181484 |
| 5modern | 270 | Fujiwara, Takashi (1540) | Lost 0-2 | -171467 |
| 6modern | 436 | Koga, Ryuji (1458) | Lost 1-2 | -181449 |
| 7modern | 372 | Takebayashi, Takahiro (1415) | Won 2-0 | +171466 |
| 8modern | 315 | Saitou, Daisuke (1307) | Won 2-1 | +161482 |
| 9modern | 239 | Syoujiki, Tomoya (1536) | Lost 0-2 | -171465 |
| top | average opponent: 1474record: 4-5 | new rating: 1465 | ||
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 125 | Yamashita, Mutsuki (1500) | Draw 1-1 | 01500 |
| 2standard | 411 | Aiba, Takashi (1449) | Won 2-0 | +171517 |
| 3standard | 329 | Kikuchi, Osamu (1467) | Lost 1-2 | -191498 |
| 4standard | 556 | Yamada, Yousuke (1568) | Won 2-1 | +191517 |
| 5standard | 386 | Miyata, Yousuke (1518) | Lost 0-2 | -181499 |
| 6standard | 509 | Yamao, Kazuhito (1500) | Lost 1-2 | -181481 |
| top | average opponent: 1500record: 2-3-1 | new rating: 1481 | ||