Roberto Satoshi de Souza (image via RIZIN / X)

By FCF Staff

RIZIN 51 took place Sunday in Nagoya,  Japan, and it saw both Roberto Satoshi de Souza and Razhabali Shaidullaev defend their respective titles with quick finishes.

De Souza retained the lightweight title by submitting Yoshinori Horie with a rear-naked-choke in the opening round.

Shaidullaev, meanwhile, defended the featherweight belt by taking out Viktor Kolesnik with strikes in just 33 seconds.

RIZIN 51 also included the semifinals for the promotion’s flyweight grand-prix. Hiromasa Ougikubo and Yuki Motoya advanced to the finals, after recording decision wins on Sunday.

In addition, the card saw Aleksandr Soldatkin win the heavyweight grand prix by defeating Marek Samociuk via decision. Soldatkin is expected to fight Ryan Bader now at RIZIN’s New Year’s Eve event.

Here are the complete results for the event.

RIZIN 51

Roberto Satoshi de Souza def. Yoshinori Horie by submission (standing rear-naked choke), R1, 1:40
Razhabali Shaidullaev def. Viktor Kolesnik by KO, R1, 0:33

Flyweight World Grand Prix Semifinals
Hiromasa Ougikubo def. Alibek Gadzhammatov by unanimous decision
Yuki Motoya def. Makoto “Shinryu” by unanimous decision
Erson Yamamoto def. Yuki Ito by unanimous decision – reserve bout

Heavyweight World Grand Prix Final

Aleksandr Soldatkin def. Marek Samociuk by unanimous decision

Danny Sabatello def. Shoko Sato by split decision
Genji Umeno def. Ryusei Ashizawa by unanimous decision
Ryo Takagi def. Kisa Miyake by unanimous decision
Yusuke Yachi def. Bilal Haga by submission (rear-naked choke), R2, 2:09
Hiroaki Suzuki def. Yuele Huang by split decision
Daichi Tomizawa def. Joe Hiramoto by split decision
Thiatou Bambilor def. Kosuke Kindaichi by unanimous decision
Takahiro Okuyama def. Tetsuya Yamato by submission (arm-bar), R1

RIZIN MMA Special Rules

Street Bob Kousuke def. Shogo Ota by unanimous decision
Kuushi Ishizaka def. Mahiro Yamaki by unanimous decision
Daisuke Kobayashi def. Syuto Sato by unanimous decision
Yuhei def. Jin Wakita by unanimous decision

Results via Cageside Press.