Riku Kano

Kano made his professional debut against Benjie Bartolome on 7 December 2013, and lost the fight by split decision.[2] After suffering his first professional loss, Kano rebounded by winning four of his next five fights, with three victories coming by way of stoppage. After amassing a 4–1–1 record, Kano was scheduled to fight Madit Sada for the vacant WBA Asia minumumweight title on 9 December 2014. He won the fight by unanimous decision, with all three judges awarding him every single round of the bout.[3]

Kano was scheduled to fight in Japan for the first time in his career on 7 June 2015, when he faced Marihot Hutajulu. He won the fight by a third-round knockout.[4] Kano was next scheduled to face Kenta Matsui on 27 September 2015.[5] He won the six round bout by unanimous decision, with scores of 60–56, 59–55 and 59–56.[6] Kano beat Pigmy Kokietgym by unanimous decision on 27 December 2015.[7]

Kano was scheduled to face the debuting Chaichana Sor Por Por Laos on 26 February 2016. He won the fight by a first-round knockout, stopping Chaichana after just 64 seconds. Kano faced a significant step-up in competition in his next bout, as he was faced the former WBO World mini-flyweight champion Merlito Sabillo for the interim OPBF minumumweight title. The bout was scheduled as the main event of the "Sanda to the World 7" event on 8 May 2016, at the Bunka Center in Sanda, Hyōgo.[8] Kano won the fight by split decision. Two judges scored the fight 117–111 for Kano, while the third judge scored it 115–113 for Sabillo.[9]

After beating Sabillo, Kano was ranked as the #1 mini-flyweight by the WBO. As such, he was scheduled to face the #2 ranked mini-flyweight contender Katsunari Takayama for the vacant WBO mini-flyweight title. The fight was scheduled for 20 August 2016, and was held at the Komagatani Gym in Sanda, Hyōgo.[10] The bout was broadcast only by TV Osaka, and as such only boxing fans in the Kantō region were able to watch it. Kano failed to become the youngest Japanese world boxing champion, as Takayama won the fight by technical decision in the sixth round. Takayama suffered a cut above his left eye due to an accidental clash of heads in the second round, which was exacerbated as the fight went on. He had built up enough of a lead by that point however, and was awarded a unanimous decision, with scores of 59–56, 59–58 and 59–55.[11]

Kano was scheduled to fight the 0–5 Thoedkiad Weerachon on 11 December 2016. He won the fight by a third–round technical knockout.[12] Kano was next scheduled to fight the journeyman Jerry Tomogdan for the vacant WBO Asia Pacific Minimumweight title on 5 May 2017, at the Bunka Center in Sanda, Hyōgo. He suffered an upset loss, as Tomogdan won the fight by a sixth-round knockout, stopping Kano with body strikes at the 1:56 minute mark.[13]

Kano was scheduled to fight the #8 ranked Japanese mini-flyweight contender Naoya Haruguchi in the main event of "W-ENDLESS Presents 11th from Mita to the World" on 5 November 2017, at the Sanda Hotel in Sanda, Hyōgo. He won the fight by majority decision, with scores of 79–74, 78–75 and 76–76.[14] Kano was scheduled to face the debuting Kittisak Khamlong on 29 April 2018, on the undercard of the "1eth from Mita to the World" event. He won the fight by a first-round knockout, stopping Kittisak in 81 seconds.[15]

Kano was scheduled to challenge the reigning Japanese mini-flyweight champion Shin Ono in the latter's first title defense. The title bout was scheduled for 24 August 2018, and was held at the Korakuen Hall in Tokyo, Japan.[16] Ono won the fight by a technical knockout, as the referee was forced to stop the fight after Kano suffered two knockdowns in the eight round.[17] Ono was ahead on the scorecards at the time of the stoppage, with two judges having him up 68–65, while the third judge had him at 67–66.[18]

After suffering his fourth loss at mini-flyweight, Kano moved up a weight class for his next bout. He was scheduled to face Takayuki Teraji on 2 December 2018.[19] Kano won the fight by unanimous decision, with scores of 79–74, 79–73 and 80–74.[20] Kano was scheduled to fight Mektison Marganti for the vacant WBC Youth World light-flyweight title on 26 May 2019.[21] He won the fight by an eight-round knockout, after Marganti's corner threw in the towel.[22] Kano faced the 2018 "Rookie of the Year" light-flyweight runner-up Tetsuya Mimura on 17 November 2019, in his last fight of the year. He won the fight by majority decision, with scores of 78–74, 77–76, 76–76.[23]

Kano was scheduled to fight Ryoki Hirai for the vacant WBO Asia Pacific light-flyweight title on 23 November 2020. He won the fight by split decision. Two judges scored the fight 116–111 and 114–113 for him, while the third judge scored it 114–113 for Hirai.[24] Kano made his first title defense against Takumi Sakae on 23 July 2021.[25] He won the fight by a ninth-round technical knockout.[26] Kano vacated the WBO Asia Pacific light-flyweight title on 14 February 2022.[27]

Kano faced the journeyman Sanchai Yotboon in a flyweight bout on 24 April 2022, in the main event of a Taisei Promotions card, held at the EDION Arena Osaka in Osaka, Japan.[28] He won the fight by a second-round technical knockout, due to referee stoppage. He dropped Yotboon twice prior to the stoppage, with both knockdowns coming in the second round.[29]

After successfully debuting in a new weight class, Kano was booked to face Yuga Inoue for the vacant WBO Asia Pacific flyweight title on 3 September 2022.[30] He captured the title by unanimous decision. Two of the judges scored the fight 115–113 for him, while the third judge scored the fight 116–112 in his favor.[31]

Kano made his first WBO Asia Pacific flyweight title defense against Daiki Kameyama on 16 April 2023.[32] He retained the title by a split decision draw, with two judges awarding a 115–113 card to Kano and Kameyama respectively, while the third ringside official had the fight scored as an even 114–114 draw.[33]