Rui Okubo

Rui Okubo is a Japanese kickboxer.

As of April 2024 he was the 10th ranked strawweight (-54 kg) kickboxer in the world by Combat Press.

Early career
As an amateur Okubo amassed a record of 145 wins, 18 losses, 3 draws and captured over 40 titles. During 2021, his last year of competition before turning professional, Okubo won the two most prestigious titles of Japanese amateur kickboxing, the Japan Cup in March and the K-1 Koshien tournament in August. He won four fights in one day during both tournaments. His Koshien success secured him a professional debut with the K-1 promotion.

Okubo made his professional debut on February 27, 2022, at K-1 World GP 2022 Japan against Shohei Nishibayashi. He won the fight by unanimous decision.

For his second professional fight, Okubo was invited on the exceptional card THE MATCH 2022 at the Tokyo Dome, on June 19, 2022, where he faced Ryujin Nasukawa, the younger brother of the card headlining star Tenshin Nasukawa. Okubo won the fight by unanimous decision.

Krush Champion
On September 24, 2022, Okubo took part in a 4-man tournament at Krush 141 with the inaugural Krush Flyweight (-51kg) title at stake. In the semifinals he rematched Shohei Nishibayashi and defeated him once again by unanimous decision. Okubo advanced to the final where he faced Daina. The fight was declared a draw after 3 rounds and went to an extension round which Okubo won by split decision to capture the inaugural title.

Okubo vacated his Krush flyweight title on April 14, 2023, in order to move up in weight. Okubo made his debut at 53 kg on June 3, 2023, at K-1 World GP 2023 in Yokohama against Ryunosuke Saito. He lost the fight by extension round decision.

On October 21, 2023, Okubo returned to krush to face Eito Kurokawa at Krush 154. He won the fight by unanimous decision.

K-1
Rui Okubo faced Kazuki Miburo at K-1 World MAX 2024 - World Tournament Opening Round on March 20, 2024. He won the fight by unanimous decision.

Okubo was announced as being part of an 8-man world tournament in the 55 kg division that would see its first round take place on July 7, 2024, at K-1 World MAX 2024 - World Championship Tournament Final.

Professional

 * Krush
 * 2022 Krush Flyweight (-51kg) Champion

Awards
 * 2022 K-1 Awards Rookie of the Year

Fight record

 * - style="text-align:center; background:#"
 * 2024-09-29||||align=left|🇯🇵 Masashi Kumura|| K-1 World MAX 2024 - 55kg World Tournament, Semifinals || Tokyo, Japan || || ||

! style=background:white colspan=9 |K-1 World -55kg Tournament Quarterfinals.
 * - style="text-align:center; background:#cfc"
 * 2024-07-07|| Win||align=left|🇨🇳 Zhao Zhendong|| K-1 World MAX 2024 - World Championship Tournament Final || Tokyo, Japan || Decision (Unanimous) || 3 ||3:00
 * - style="text-align:center; background:#cfc"
 * 2024-03-20|| Win ||align=left|🇯🇵 Kazuki Miburo || K-1 World MAX 2024 - World Tournament Opening Round || Tokyo, Japan || Decision (Unanimous) ||3  ||3:00


 * - style="background:#cfc;"
 * 2023-10-21 || Win ||align=left|🇯🇵 Eito Kurokawa || Krush 154 || Tokyo, Japan || Decision (Unanimous) || 3 || 3:00


 * - style="text-align:center; background:#fbb;"
 * 2023-06-03 || Loss||align=left|🇯🇵 Ryunosuke Saito || K-1 World GP 2023 in Yokohama || Yokohama, Japan || Ext.R Decision (Split)|| 4 ||3:00

! style=background:white colspan=9 |Wins the inaugural Krush Flyweight (-51.5kg) title.
 * - style="background:#cfc;"
 * 2022-09-24 || Win ||align=left|🇯🇵 Daina || Krush 141 - Flyweight Championship Tournament Final || Tokyo, Japan || Ext.R Decision (Split)|| 4 || 3:00


 * - style="background:#cfc;"
 * 2022-09-24 || Win ||align=left|🇯🇵 Shohei Nishibayashi || Krush 141 - Flyweight Championship Tournament Semi Final || Tokyo, Japan || Decision (Unanimous)|| 3 || 3:00


 * - style="text-align:center; background:#cfc;"
 * 2022-06-19|| Win ||align=left|🇯🇵 Ryujin Nasukawa ||THE MATCH 2022 || Tokyo, Japan || Decision (Unanimous)|| 3||3:00


 * - style="background:#cfc"
 * 2022-02-27|| Win ||align=left|🇯🇵 Shohei Nishibayashi || K-1 World GP 2022 Japan || Tokyo, Japan ||  Decision (unanimous) || 3 || 3:00
 * colspan=9 | Legend:
 * colspan=9 | Legend: