Asahi Shinagawa is a Japanese Muay Thai fighter, also known as Asahi P.K.Saenchaimuaythaigym in Thailand. He is a former WBC Muaythai Super Bantamweight champion.
Shinagawa won his first major title in May 2020, when he defeated Yuzuki Sakai to capture the MA Japan Kick Flyweight title.
He was scheduled to fight Naki Sirilakmuaythai for the Muay Siam Isan Bantamweight title. Shinagawa won the fight by a second-round TKO. Asahi fought for the Lumpinee Stadium Japan Super Bantamweight title in June 2019, and won by a second round left hook KO.
Shinagawa made his ONE Championship debut during the ONE Japan Series: Road to Century event, against Satsuma Sazanami. He knocked Sazanami out in the first round.
He challenged Petchawalit Sor.Chitpattana for the IBF & WBC Muay Thai World Bantamweight titles. Petchawalit won the fight by unanimous decision.
In February 2020, Asahi fought Sing-Udon Aor.Aood-Udon for the WBC Muay Thai World Super Bantamweight title. He won the fight by a second-round low kick KO.
Shinagawa fought for ONE Championship for the second time during , when he was scheduled to fight KING Kyosuke. He defeated Kyosuke by unanimous decision.
Shinagawa fought Jomrawee Refinas Gym for the IMC Featherweight title at BOM WAVE 03. He won the fight by unanimous decision.
Shinagawa was scheduled to fight Pon-chan BraveGym at BOM WAVE 04.
On February 2, 2021, it was announced that Shinagawa had signed with ONE Championship. He faced Joseph Lasiri at on December 17, 2021. He lost the bout via knockout in the first round.
Shinagawa faced Rui Botelho on November 19, 2022, at ONE 163. At the weigh-ins, Shinagawa weighed in at 126 pounds, 1 pounds over the strawweight limit and Shinagawa was fined 20% of his purse, which will go to his opponent Botelho. He won the fight via split decision.
|- style="background:#;" | 2026-04-05|| ||align=left| Petchaophraya Sitkamnanneng || BOM 50 || Yokohama, Japan || || || |- ! style=background:white colspan=9 |
|- style="background:#fbb;" | 2025-12-19 || Loss ||align=left| Denkriangkrai Singha Mawynn || ONE Friday Fights 137, Lumpinee Stadium || Bangkok, Thailand || Decision (Unanimous) ||3 ||3:00
|- style="background:#cfc;" | 2025-10-05|| Win||align=left| Saiphet Sor.Wisanupon|| BOM OUROBOROS 2025 || Yokosuka, Japan || KO (Left hook to the body)|| 1 ||1:15 |- ! style=background:white colspan=9 | |- style="background:#cfc;" | 2025-06-27 || Win||align=left| Petphupa Aekpujean || ONE Friday Fights 114, Lumpinee Stadium || Bangkok, Thailand || Decision (Unanimous) ||3 ||3:00 |- style="background:#cfc;" | 2025-05-11|| Win ||align=left| Palangphet Chor.Champion || BOM x Space ONE Japan|| Tokyo, Japan || TKO (4 Knockdowns) || 3 || 2:17 |- style="background:#fbb;" | 2025-02-22|| Loss ||align=left| Samandar Khasanov || Rajadamnern World Series || Bangkok, Thailand ||Decision (Unanimous) ||3 ||3:00
|- style="background:#cfc;" | 2024-12-01 || Win ||align=left| Nicolas Leite Silva || Rajadamnern World Series Japan || Yokohama, Japan || KO (Left hook to the body) || 1|| 1:45
|- style="background:#c5d2ea;" | 2024-10-13 || Draw||align=left| Thun Phanit || BOM 49 || Tokyo, Japan || Decision (Unanimous) ||5 ||3:00
|- style="background:#cfc;" | 2024-07-14 || Win ||align=left| Chaiyakorn Por.Lakboon || Rajadamnern World Series Japan || Chiba, Japan || KO (Left hook to the body) || 1|| 1:53
|- style="background:#cfc;" | 2024-06-15|| Win ||align=left| Nur Mohammad || Rajadamnern World Series || Bangkok, Thailand || Decision (Unanimous) || 3 || 3:00
|- style="background:#cfc;" | 2024-03-23 || Win ||align=left| Petchwaewwow Kiatchatchai || Rajadamnern World Series || Bangkok, Thailand || KO (Left hook to the body) || 1 || 1:05
|- style="background:#cfc;" | 2024-01-21 || Win ||align=left| Surasak KrudamGym|| TOP BRIGHTS 1 || Tokyo, Japan || KO (Low kick) || 2 || 2:04
|- style="background:#cfc;" | 2023-12-22|| Win ||align=left| Superman Banchamek|| Amazing Muay Thai: Road to Rajadamnern, Rajadamnern Stadium || Bangkok, Thailand || KO (Left hook) ||2 ||1:37 |- ! style=background:white colspan=9 | |- style="background:#cfc;" | 2023-11-26 || Win ||align=left| Narit Sor.Somnuk || BOM 45 || Yokohama, Japan || KO (Low kick)|| 2 ||2:45 |- style="background:#cfc;" | 2023-10-01|| Win ||align=left| Lukbon LB MuayThai || BOM 44|| Yokosuka, Japan || KO (Left hook)|| 1 || 1:14 |- style="background:#cfc;" | 2023-08-06 || Win ||align=left| Muangphet Rachanon|| BOM 43 || Yokohama, Japan || KO (Left hook to the body) || 1|| 2:30 |- style="background:#cfc;" | 2022-11-19 || Win ||align=left| Rui Botelho || ONE 163 || Kallang, Singapore || Decision (Split)|| 3||3:00 |- style="background:#cfc;" | 2022-09-23|| Win || align=left| Peym Baraikankendon || The Battle of Muay Thai "OUROBOROS" || Tokyo, Japan || KO (Left hook) || 4 || 1:36 |- ! style=background:white colspan=9 |
|- style="background:#fbb;" | 2021-12-03|| Loss ||align=left| Joseph Lasiri || || Kallang, Singapore || KO (Punch + Knee) || 1 || 2:05 |- style="text-align:center; background:#cfc;" | 2021-07-04|| Win ||align=left| Motoaki Takahashi || The Battle Of Muay Thai WAVE 05 - Get over the COVID-19 || Yokohama, Japan || Decision (Unanimous) || 3 ||3:00 |- style="text-align:center; background:#cfc;" | 2021-04-11|| Win ||align=left| Pon-chan BraveGym|| The Battle Of Muay Thai WAVE 04 - Get over the COVID-19 || Yokohama, Japan || Decision (Unanimous) || 5 || 3:00 |- style="text-align:center; background:#cfc;" | 2020-12-06|| Win ||align=left| Jomrawee Refinas Gym|| The Battle Of Muay Thai WAVE 03 - Get over the COVID-19 || Yokohama, Japan || Decision (Unanimous) || 5||3:00 |- ! style=background:white colspan=9 | |- style="text-align:center; background:#cfc;" | 2020-09-10||Win||align=left| KING Kyosuke || || Tokyo, Japan || Decision (Unanimous) || 3 || 3:00 |- style="text-align:center; background:#cfc;" | 2020-02-09||Win||align=left| Sing-Udon Aor.Aood-Udon || The Battle Of Muay Thai SEASON II vol.7 || Tokyo, Japan || KO (Low kick) || 2 || 1:44 |- ! style=background:white colspan=9 | |- style="text-align:center; background:#fbb;" | 2019-12-08||Loss||align=left| Petchawarit Sor.Jitpattana || The Battle Of Muay Thai SEASON II vol.6 pt.2 || Tokyo, Japan || Decision (Unanimous) || 5 || 3:00 |- ! style=background:white colspan=9 | |- style="text-align:center; background:#CCFFCC;" | 2019-09-01|| Win ||align=left| Satsuma Sazanami|| ONE Japan Series: Road to Century || Tokyo, Japan || KO (Left hook) || 1 || 1:37 |- style="text-align:center; background:#CCFFCC;" | 2019-06-01|| Win ||align=left| Samsien Sirilakmuaythai|| The Battle Of MuayThai SEASON II vol.2 || Yokohama, Japan || KO (Left hook) || 2 || 1:20 |- ! style=background:white colspan=9 | |- style="text-align:center; background:#CCFFCC;" | 2019-04-14|| Win ||align=left| Naki Sirilakmuaythai|| The Battle Of MuayThai SEASON II vol.1 || Yokohama, Japan || TKO (Left hooks) || 2 || 2:20 |- ! style=background:white colspan=9 | |- style="text-align:center; background:#fbb;" | 2019-02-10|| Loss||align=left| Yodmeechai Kiatjamrun|| OrTorGor.3 stadium || Nonthaburi, Thailand || TKO (Left body kick) || 3 || |- style="text-align:center; background:#CCFFCC;" | 2018-12-09|| Win ||align=left| Maoklee Phetsimuean|| BOMXX -The Battle Of MuaytThai 20- || Yokohama, Japan || TKO (Left hook to the body) || 2 || |- style="text-align:center; background:#fbb;" | 2018-08-10|| Loss||align=left| Singpayak Sitpanon|| Lumpinee Stadium || Bangkok, Thailand || TKO (Low blow) || 2 || |- style="text-align:center; background:#cfc;" | 2018-06-30|| Win||align=left| Panomtuan Rongrienkratiemwittaya|| Lumpinee Stadium || Bangkok, Thailand || KO (Left hook to the body) || 2 || |- style="text-align:center; background:#cfc;" | 2018-05-20|| Win||align=left| Yuzuki Sakai|| MAJKF FIGHT FOR PEACE 9 || Tokyo, Japan || Decision (Majority)|| 3 || 3:00 |- ! style=background:white colspan=9 | |- style="text-align:center; background:#fbb;" | 2018-03-30|| Loss||align=left| Yothin Kiatyothin|| Lumpinee Stadium || Bangkok, Thailand || KO || 3 || |- style="text-align:center; background:#cfc;" | 2018-02-18|| Win||align=left| Payakdum Singmawin|| Nonthaburi Stadium || Nonthaburi, Thailand || KO (Left hooks) || 2 || |- style="text-align:center; background:#cfc;" | 2017-12-19|| Win||align=left| Tonbai Peminburi|| Lumpinee Stadium || Bangkok, Thailand || KO (Left hook to the body)|| 1 || |- style="text-align:center; background:#cfc;" | 2017-09-05|| Win||align=left| Lekboran|| Lumpinee Stadium || Bangkok, Thailand || KO (Left hook to the body)|| 2 || |- style="text-align:center; background:#cfc;" | 2017-08-06|| Win||align=left| Shotaro Maeda|| The Battle Of Muaythai XV || Tokyo, Japan || Decision (Unanimous)|| 3 || 3:00 |- style="text-align:center; background:#fbb;" | 2017-07-21|| Loss||align=left| Attaphon Sor.Kongdetch|| Lumpinee Stadium || Bangkok, Thailand || KO || 3 || |- style="text-align:center; background:#cfc;" | 2017-06-18|| Win||align=left| Rachasi NornaksingTokyo|| Muay Lok 2017 2nd || Tokyo, Japan || KO (Left hook to the body)|| 2 || |- style="text-align:center; background:#cfc;" | 2017-04-09|| Win||align=left| Shinta|| BOM14 - The Battle Of Muay Thai 14 - || Tokyo, Japan || KO (Left hook)|| 2 || 1:49 |- style="text-align:center; background:#cfc;" | 2017-03-05|| Win||align=left| Riichi Hoshino|| Muay Lok 2017 1st || Tokyo, Japan || KO (Right Hook) || 1 || 0:46 |- style="text-align:center; background:#fbb;" | 2016-09-30|| Loss ||align=left| Petchseekew Chor.Sampeenong|| MAX Muay Thai || Bangkok, Thailand || Decision || 3 || 3:00 |- style="text-align:center; background:#fbb;" | 2016-06-26|| Loss||align=left| Kaito Gibu || K-SPIRIT 14 || Okinawa, Japan || Decision (Unanimous) || 5 || 3:00 |- style="text-align:center; background:#cfc;" | 2016-03-06|| Win||align=left| Sontichip Londiemsamkor|| Rajadamnern Stadium || Bangkok, Thailand || KO (Punches)|| 4 || |- style="text-align:center; background:#fbb;" | 2015-08-15 || Loss||align=left| Kwayna Nathakinpla || Lumpinee Stadium "Krirkkrai" || Bangkok, Thailand || Decision ||5 || 2:00 |- style="text-align:center; background:#fbb;" | 2015-06-20 || Loss||align=left| Satanfaa Sakdiwarun || Lumpinee Stadium "Krirkkrai" || Bangkok, Thailand || Decision ||5 || 2:00 |- | colspan=9 | Legend: