| Koto Hiraoka | |
| Nickname: | The Iron Lady of Hama |
| Birth Date: | 20 June 1990 |
| Birth Place: | Yokohama, Japan |
| Fighting Out Of: | Machida, Tokyo, Japan |
| Weight Kg: | 47 |
| Style: | Kickboxing, Karate |
| Rank: | Black belt in Kyokushin karate[1] |
| Stance: | Orthodox |
| Team: | Kyokushinkaikan Yokohama North Branch (1999-2015) K-1 Gym Yokohama (2015-2017) TRY HARD (2017-present) |
| Years Active: | 2015 - present |
| Kickbox Win: | 15 |
| Kickbox Kowin: | 3 |
| Kickbox Loss: | 9 |
| Kickbox Koloss: | 1 |
| Kickbox Draw: | 1 |
| Url: | https://www.kotohiraoka.com/ |
is a Japanese kickboxer, currently competing in the atomweight division of RISE. As of April 2024, she is ranked as the seventh-best women's atomweight kickboxer in the world by Beyond Kickboxing.[2]
Hiraoka made her professional kickboxing debut against the two-time K-1 Challenge tournament winner KANA at Krush 58 on September 12, 2015. The bout was contested at 50 kilograms. Hiraoka was twice knocked down, prior to being stopped with a right hook near the end of the second round.[3]
Hiraoka faced Fumina Saito at Krush 62 on January 17, 2016. The fight was ruled a majority decision draw.[4] Hiraoka next faced Yukari Matsui at Krush 67 on July 18, 2016. She won the fight by a first-round technical knockout.[5] Hiraoka would extend her win streak to four fights with triumphs over Texas Ayumi at Krush 72 and Ayaka Miyauchi at Krush 76, which earned her a spot in the 2017 Krush Women's Atomweight tournament.[6] Hiraoka faced Emi Matsushita at in the semifinal bout of the tournament at Krush 80 on September 8, 2017. She lost the fight by unanimous decision.[7]
Hiraoka faced Shoko JSK at RISE 127 on September 16, 2018. She won the fight by a second-round technical knockout, first knocking her opponent down with a middle kick, before knocking her out with a spinning back kick.[8]
Hiraoka faced Tomoko Hida at RISE 129 on September 17, 2018.[9] [10] She won the fight by unanimous decision, with scores of 30–28, 30–28 and 29–28.[11]
Hiraoka faced Riri Nasukawa in the semifinals of the RISE Queen Atomweight tournament at RISE 131 on March 23, 2019.[12] She lost the fight by unanimous decision.[13]
Hiraoka faced Momoka Mandokoro at RISE WORLD SERIES 2019 Final Round on July 13, 2019.[14] The fight was ruled a majority decision draw: two ringside officials scored the fight as an even 29–29, while the third judge scored it 29–28 in favor of Hiraoka. She won the fight by split decision, after an extra was contested.[15]
Hiraoka faced Reina Sato at the inaugural RISE GIRLS POWER event on November 8, 2019. She won the fight by unanimous decision.[16]
Hiraoka challenged Momi Furuta for the RISE Women's Atomweight title at RISE GIRLS POWER 2 on February 11, 2020.[17] Despite knocking the champion down with a spinning heel kick in the third round, Hiraoka nonetheless lost the fight by unanimous decision, with scores of 48–47, 47–46 and 47–46.[18]
Hiraoka made her REBELS debut against erika♡ at REBELS 65 on August 30, 2020. She lost the fight by unanimous decision, with all three judges scoring the fight 29–28 in favor of her opponent.[19]
Hiraoka faced sasori at RISE DEAD OR ALIVE 2020 Yokohama on October 11, 2020, in the quarterfinals of the 2020 RISE Queen of Queens Tournament Quarter Final. Hiraoka stepped in as a short-notice replacement for Megami, who withdrew from the bout two-weeks prior with a right ulna fracture.[20] She lost the fight by unanimous decision, with scores of 30–27, 30–27 and 30–28.[21]
Hiraoka faced Arina Kobayashi at RISE 148 on April 17, 2021. She lost the fight by majority decision, with scores of 30–28, 30–29 and 29–29.[22]
Hiraoka faced Nana Okuwaki at RISE GIRLS POWER 5 on September 12, 2021. She won the fight by unanimous decision, with three scorecards of 30–28 in her favor.[23]
Hiraoka faced Suzuka Tabuchi at RISE GIRLS POWER 6 on February 12, 2022.[24] She won the fight by unanimous decision, with three scorecards of 30–29 in her favor.[25]
Hiraoka faced Momoka Mandokoro in a rematch at RISE 159 on June 24, 2022. She won the fight by unanimous decision, with scores of 30–28, 30–28 and 29–28.[26]
Hiraoka faced Arina Kobayashi in an open-finger glove bout at RISE 163 on December 10, 2022. She lost the fight by unanimous decision, as all three judges scored the fight 29–28 in favor of Kobayashi.[27]
Hiraoka faced Minori Kikuchi in another open-finger glove bout at RISE 167 on April 21, 2023. She won the fight by unanimous decision, with three scorecards of 30–28 in her favor.[28]
Hiraoka next faced Honoka Kobayashi at RISE Fight Club on November 19, 2023, once again in an open-finger glove bout. She won the fight by unanimous decision, with scores of 30–27, 30–27 and 30–26. Hiraoka was able to knock Kobayashi down with a knee strike late in the third and final round.[29]
Hiraoka faced the former Knock Out-Black Female Minimumweight Champion Panchan Rina at K-1 World MAX 2024 - World Tournament Opening Round on March 20, 2024.[30] She lost the fight by Majority decision.[31]
Hiraoka is scheduled to face Su Yun-Ko at a RISExPunchUp crossover event on June 1, 2024.[32]
Karate
|-|- style="text-align:center; background:#cfc"| 2024-06-01 || Win ||align=left|
Su Yun-Ko || RISE x PunchUp || Hualien, Taiwan || Decision (Unanimous) || 3 ||3:00 |-|- style="text-align:center; background:#fbb"| 2024-03-20 || Loss ||align=left|
Panchan Rina || K-1 World MAX 2024 - World Tournament Opening Round || Tokyo, Japan || Decision (Majority) || 3 || 3:00|-|- style="text-align:center; background:#cfc"| 2023-11-19 || Win ||align=left| Honoka Kobayashi || RISE Fight Club || Tokyo, Japan || Decision (Unanimous) || 3 || 3:00|-|- style="text-align:center; background:#cfc"| 2023-04-21 || Win ||align=left| Minori Kikuchi || RISE 167 || Tokyo, Japan || Decision (Unanimous) || 3 || 3:00|-|- style="text-align:center; background:#fbb"| 2022-12-10 || Loss ||align=left| Arina Kobayashi || RISE 163 || Tokyo, Japan || Decision (Unanimous) || 3 || 3:00|-|- style="text-align:center; background:#cfc"| 2022-06-24 || Win ||align=left| Momoka Mandokoro || RISE 159 || Tokyo, Japan || Decision (Unanimous) || 3 || 3:00|-|- style="text-align:center; background:#cfc"| 2022-02-12 || Win ||align=left| Suzuka Tabuchi || RISE GIRLS POWER 6 || Tokyo, Japan || Decision (Unanimous) || 3 || 3:00|-|- style="text-align:center; background:#cfc"| 2021-09-12 || Win ||align=left| Nana Okuwaki || RISE GIRLS POWER 5|| Tokyo, Japan || Decision (Unanimous) || 3 || 3:00|-|- style="text-align:center; background:#fbb"| 2021-04-17 || Loss ||align=left| Arina Kobayashi || RISE 148 || Tokyo, Japan || Decision (Majority) || 3 || 3:00|-|- style="text-align:center; background:#fbb"| 2020-10-11 || Loss ||align=left| sasori || RISE DEAD OR ALIVE 2020 Yokohama, Queen of Queens Tournament Quarter Final || Yokohama, Japan || Decision (Unanimous) || 3 || 3:00|-|- style="text-align:center; background:#fbb"| 2020-08-30 || Loss ||align=left| erika♡ || REBELS 65 || Tokyo, Japan || Decision (Unanimous) || 3 || 3:00|-|- style="text-align:center; background:#fbb"| 2020-02-11 || Loss ||align=left| Momi Furuta || RISE GIRLS POWER 2 || Tokyo, Japan || Decision (Unanimous) || 5 || 3:00|-! style=background:white colspan=9 ||-|- style="text-align:center; background:#cfc"| 2019-11-08 || Win ||align=left| Reina Sato || RISE GIRLS POWER || Tokyo, Japan || Decision (Unanimous) || 3 || 3:00|-|- style="text-align:center; background:#cfc"| 2019-09-16 || Win ||align=left| Momoka Mandokoro || RISE WORLD SERIES 2019 Final Round || Tokyo, Japan || Ext. R. Decision (Split) || 3 || 3:00|-|- style="text-align:center; background:#cfc"| 2019-07-13 || Win ||align=left|
Kim Hyun Joo || RISE Versus MKF || Tokyo, Japan || TKO (Knee injury) || 3 || 0:10 |-|- style="text-align:center; background:#fbb"| 2019-03-23 || Loss ||align=left| Riri Nasukawa || RISE 131, Tournament Semifinal || Tokyo, Japan || Decision (Unanimous) || 3 || 3:00|-|- style="text-align:center; background:#cfc"| 2018-11-17 || Win ||align=left| Tomoko Hida || RISE 129 || Tokyo, Japan || Decision (Unanimous) || 3 || 3:00|-|- style="text-align:center; background:#cfc"| 2018-09-16 || Win ||align=left| Shoko JSK || RISE 127 || Tokyo, Japan || KO (Spinning back kick) || 2 || 2:44|-|- style="text-align:center; background:#fbb"| 2017-09-08 || Loss ||align=left| Emi Matsushita || Krush 80, Tournament Semifinal || Tokyo, Japan || Decision (Unanimous) || 3 || 3:00|-|- style="text-align:center; background:#cfc"| 2017-05-28 || Win ||align=left| Ayaka Miyauchi || Krush 76 || Tokyo, Japan || Decision (Majority) || 3 || 3:00|-|- style="text-align:center; background:#cfc"| 2017-01-15 || Win ||align=left| Texas Ayumi || Krush 72 || Tokyo, Japan || Decision (Unanimous) || 3 || 3:00|-|- style="text-align:center; background:#cfc"| 2016-09-30 || Win ||align=left| Yukari Takara || Krush 69 || Tokyo, Japan || Decision (Unanimous) || 3 || 3:00|-|- style="text-align:center; background:#cfc"| 2016-07-18 || Win ||align=left| Yukari Matsui || Krush 67 || Tokyo, Japan || TKO (Punches) || 1 || 0:43|-|- style="text-align:center; background:#c5d2ea"| 2016-01-17 || Draw ||align=left| Fumina Saito || Krush 62 || Tokyo, Japan || Decision (Majority) || 3 || 2:00|-|- style="text-align:center; background:#fbb"| 2015-09-12 || Loss ||align=left| KANA || Krush 58 || Tokyo, Japan || KO (Right hook) || 2 || 2:54|-| colspan=9 | Legend: