88.Japanese National Championships
Ibaraki
November 14-18, 2018
Preliminaries
| 2018-11-14 | 49kg | Goki Kobayashi | Hiromitsu Sumita | 5:0 |
| 2018-11-14 | 49kg | Reiji Kawaguchi | Yuri Kanaya | 4:1 |
| 2018-11-14 | 49kg | Tomoki Kawasaki | Kosuke Furuyama | 5:0 |
| 2018-11-14 | 52kg | Ryusei Baba | Ryu Ito | 4:1 |
| 2018-11-14 | 52kg | Tatsuya Sakamoto | Hikaru Uzu | 3:2 |
| 2018-11-14 | 52kg | Jukiya Imura | Josuke Nagata | 5:0 |
| 2018-11-14 | 52kg | Tosho Kashiwazaki | Ayato Hiromoto | 5:0 |
| 2018-11-14 | 52kg | Tomoya Tsuboi | Tatsuya Ogawa | 5:0 |
| 2018-11-14 | 52kg | Ryutaro Nakagaki | Kaiyu Toyoshima | 5:0 |
| 2018-11-14 | 52kg | Seiya Sugimoto | Sonfa Pe | 4:1 |
| 2018-11-14 | 52kg | Ryomei Tanaka | Yusuke Sato | 5:0 |
| 2018-11-14 | 56kg | Hiroto Matsuda | Kento Uchigamae | 5:0 |
| 2018-11-14 | 56kg | Kosei Tsubata | Ren Nakaoka | 3:2 |
| 2018-11-14 | 56kg | Haruki Takahashi | Hiroto Yashiro | WO. |
| 2018-11-14 | 56kg | Jun Ikegawa | Hikaru Ohashi | 5:0 |
| 2018-11-14 | 60kg | Arashi Morisaka | Sho Hatakeyama | 5:0 |
| 2018-11-14 | 60kg | Ko Tsuyuki | ??? | ??? |
| 2018-11-14 | 60kg | Ryuji Kanaka | ??? | ??? |
| 2018-11-14 | 60kg | Rentaro Kimura | ??? | ??? |
| 2018-11-14 | 60kg | Junya Shimada | ??? | ??? |
| 2018-11-14 | 60kg | Taiga Imanaga | ??? | ??? |
| 2018-11-14 | 60kg | Ryosuke Nishida | ??? | ??? |
| 2018-11-14 | 60kg | Kenji Fujita | ??? | ??? |
| 2018-11-14 | 64kg | Shunya Ouchi | ??? | ??? |
| 2018-11-14 | 64kg | Takafumi Shibata | Kenshin Kidoguchi | 5:0 |
| 2018-11-14 | 64kg | Shinichiro Morishita | Hayato Tamura | 5:0 |
| 2018-11-14 | 64kg | Yoshinori Fujiyama | Shogo Kokubun | 3:1 |
| 2018-11-14 | 64kg | Susumu Sato | Jinya Maruishi | 3:2 |
| 2018-11-14 | 69kg | Nisei Sakurai | Daisuke Tsuchida | 4:1 |
| 2018-11-14 | 69kg | Ryuya Ishinada | Yohei Masuda | 5:0 |
| 2018-11-14 | 69kg | Nobuhiro Hiranaka | Yukiya Ochiai | RSC 1 |
| 2018-11-14 | 69kg | Naoki Harada | Sho Usami | 5:0 |
| 2018-11-14 | 69kg | Jin Murakami | Towa Nishioka | 4:1 |
| 2018-11-14 | 69kg | Sewon Okazawa | Masaaki Miyatsu | 5:0 |
| 2018-11-14 | 75kg | Rikiya Horiguchi | Ryo Onishi | RSC 3 |
| 2018-11-14 | 75kg | Rei Nakajima | Hideki Nishiyama | AB 1 |
| 2018-11-14 | 75kg | Kyohei Hosono | Rento Tanaka | 5:0 |
Quarterfinals
| 2018-11-15 | 49kg | Yudai Shigeoka | Goki Kobayashi | AB 1 |
| 2018-11-15 | 49kg | Asato Kataoka | Tomoya Yoshida | RSC 2 |
| 2018-11-15 | 49kg | Daichi Hasebe | Reiji Kawaguchi | 4:1 |
| 2018-11-15 | 49kg | Ryusei Matsumoto | Tomoki Kawasaki | 5:0 |
| 2018-11-15 | 52kg | Tatsuya Sakamoto | Ryusei Baba | 4:0 |
| 2018-11-15 | 52kg | Tosho Kashiwazaki | Jukiya Imura | AB 2 |
| 2018-11-15 | 52kg | Tomoya Tsuboi | Ryutaro Nakagaki | 5:0 |
| 2018-11-15 | 52kg | Ryomei Tanaka | Seiya Sugimoto | RSC 3 |
| 2018-11-15 | 56kg | Hayato Tsutsumi | Hiroto Matsuda | 5:0 |
| 2018-11-15 | 56kg | Keisuke Matsumoto | Kosei Tsubata | 5:0 |
| 2018-11-15 | 56kg | Kota Kaneko | Haruki Takahashi | 4:1 |
| 2018-11-15 | 56kg | Subaru Murata | Jun Ikegawa | 5:0 |
| 2018-11-15 | 60kg | Arashi Morisaka | Ko Tsuyuki | 5:0 |
| 2018-11-15 | 60kg | Rentaro Kimura | Ryuji Kanaka | WO. |
| 2018-11-15 | 60kg | Taiga Imanaga | Junya Shimada | 4:1 |
| 2018-11-15 | 60kg | Kenji Fujita | Ryosuke Nishida | 4:1 |
| 2018-11-15 | 64kg | Daisuke Narimatsu | Shunya Ouchi | 5:0 |
| 2018-11-15 | 64kg | Takafumi Shibata | Shinichiro Morishita | WO. |
| 2018-11-15 | 64kg | Mahiro Tomita | Yoshinori Fujiyama | 3:2 |
| 2018-11-15 | 64kg | Yuta Akiyama | Susumu Sato | WO. |
| 2018-11-15 | 69kg | Hiroaki Kinjo | Nisei Sakurai | 5:0 |
| 2018-11-15 | 69kg | Ryuya Ishinada | Nobuhiro Hiranaka | 3:0 |
| 2018-11-15 | 69kg | Naoki Harada | Jin Murakami | 5:0 |
| 2018-11-15 | 69kg | Sewon Okazawa | Issei Aramoto | 3:2 |
| 2018-11-15 | 75kg | Yuito Moriwaki | Rikiya Horiguchi | RSC 1 |
| 2018-11-15 | 75kg | Yuya Tanaka | Mikio Sakai | RSCI 2 |
| 2018-11-15 | 75kg | Rei Nakajima | Ryudai Onikura | 5:0 |
| 2018-11-15 | 75kg | Kyohei Hosono | Ren Umemura | 3:2 |
| 2018-11-15 | 81kg | Ryuto Nitta | Koki Mishima | 5:0 |
| 2018-11-15 | 81kg | Masaki Yamada | Kenta Nemoto | 4:1 |
Semifinals
| 2018-11-16 | 49kg | Yudai Shigeoka | Asato Kataoka | 4:1 |
| 2018-11-16 | 49kg | Daichi Hasebe | Ryusei Matsumoto | 4:0 |
| 2018-11-16 | 52kg | Tosho Kashiwazaki | Tatsuya Sakamoto | 5:0 |
| 2018-11-16 | 52kg | Ryomei Tanaka | Tomoya Tsuboi | 3:2 |
| 2018-11-16 | 56kg | Keisuke Matsumoto | Hayato Tsutsumi | WO. |
| 2018-11-16 | 56kg | Subaru Murata | Kota Kaneko | 5:0 |
| 2018-11-16 | 60kg | Arashi Morisaka | Rentaro Kimura | 4:1 |
| 2018-11-16 | 60kg | Kenji Fujita | Taiga Imanaga | 5:0 |
| 2018-11-16 | 64kg | Daisuke Narimatsu | Takafumi Shibata | 5:0 |
| 2018-11-16 | 64kg | Yuta Akiyama | Mahiro Tomita | 5:0 |
| 2018-11-16 | 69kg | Hiroaki Kinjo | Ryuya Ishinada | 3:2 |
| 2018-11-16 | 69kg | Sewon Okazawa | Naoki Harada | 5:0 |
| 2018-11-16 | 75kg | Yuito Moriwaki | Yuya Tanaka | RSC 1 |
| 2018-11-16 | 75kg | Kyohei Hosono | Rei Nakajima | 5:0 |
| 2018-11-16 | 81kg | Ryuto Nitta | Takumi Sakamoto | 3:2 |
| 2018-11-16 | 81kg | Takuro Kurita | Masaki Yamada | 5:0 |
Finals
| 2018-11-18 | 49kg | Yudai Shigeoka | Daichi Hasebe | 5:0 |
| 2018-11-18 | 52kg | Tosho Kashiwazaki | Ryomei Tanaka | 4:1 |
| 2018-11-18 | 56kg | Subaru Murata | Keisuke Matsumoto | 3:0 |
| 2018-11-18 | 60kg | Arashi Morisaka | Kenji Fujita | 3:2 |
| 2018-11-18 | 64kg | Daisuke Narimatsu | Yuta Akiyama | 5:0 |
| 2018-11-18 | 69kg | Sewon Okazawa | Hiroaki Kinjo | 5:0 |
| 2018-11-18 | 75kg | Yuito Moriwaki | Kyohei Hosono | 5:0 |
| 2018-11-18 | 81kg | Takuro Kurita | Ryuto Nitta | 3:2 |
thanks to Shunya Seri and Tibor Kincses
Japanese National Champs History | National Champs Index | 2017 Results