Thananchai Sitsongpeenong () is a Thai Muay Thai fighter. He is the 2023 Rajadamnern World Series Super Welterweight (70 kg) champion.Strobel, K. (2023, November 16). Rajadamnern World Series Champion Thananchai Wants To Fight Kickboxing - Challenges Shootboxing Ace Kaito. Beyond Kick. https://beyondkick.com/news/rajadamnern-world-series-champion-thananchai-wants-to-fight-kickboxing-down-to-fight-kaito As of June 2024 , Combat Press ranked Thananchai the second best super welterweight (154 pounds) fighter in the world.Kuhl, D. (2024, May 15). COMBAT PRESS MUAY THAI RANKINGS: JUNE 2024. Combat Press. Retrieved July 29, 2024, from https://combatpress.com/2024/05/combat-press-muay-thai-rankings-june-2024/

Biography and career Thananchai was taught Muay Thai from a young age by his father. He made his professional debut at 14. In 2020, Thananchai moved from Rachanon gym to Sitsongpeenpong to chase his dream of becoming a World Champion.

On March 11, 2023, Thananchai defeated Nauzet Trujillo at KSP Promotion in Kuwait to win the WBC Muaythai Super Welterweight (154lb) Championship.

Titles and accomplishments Professional World Muay Thai Council 2018 WMC World -147 lb Champion

Professional Boxing Association of Thailand (PAT) 2018 Thailand -147 lb Champion

Phoenix Fighting Championship 2018 Phoenix FC -147 lb Champion

Siam Omnoi Stadium 2018 Omnoi Stadium -147 lb Championhttps://www.facebook.com/pg/SiamFightNews/posts/?ref=page_internal

World Boxing Council Muay Thai 2023 WBC Muay Thai World Super Welterweight (154 lbs) Champion

Rajadamnern Stadium 2023 Rajadamnern World Series Super Welterweight (154 lbs) Winner 2025 interim Rajadamnern Stadium Middleweight (160 lbs) Champion

Amateur International Federation of Muaythai Associations 2019 IFMA World Championships -67 kg 2021 IFMA World Championships -71 kg 2024 IFMA World Championships -71 kg

World Games 2022 World Games IFMA Muay Thai -71 kg

World Combat Games 2023 World Combat Games Muay Thai -71 kg

Fight record

|- style="background:#cfc;" | 2026-10-03|| Win ||align=left| Thanupetch Wor. Technoluangpoosuang || Rajadamnern World Series || Bangkok, Thailand || KO (elbow)||2 || 1:28 |- style="background:#cfc;" | 2025-12-20|| Win||align=left| Emerson Bento || Rajadamnern World Series || Bangkok, Thailand || Decision (Unanimous) || 5 ||3:00 |- ! style=background:white colspan=9 |

|- style="background:#cfc;" | 2025-10-25|| Win ||align=left| Elad Suman || Rajadamnern World Series || Bangkok, Thailand || Decision (Unanimous) ||5 ||3:00 |- ! style=background:white colspan=9 |

|- style="background:#cfc;" | 2025-09-06|| Win ||align=left| George Ferreira|| Rajadamnern World Series, Rajadamnern Stadium || Bangkok, Thailand || KO (Knee)|| 1 ||1:56

|- style="background:#cfc;" | 2025-06-07 || Win ||align="left" | Babak Sorkhedizaj || Rajadamnern World Series || Bangkok, Thailand || TKO (Elbows) || 1 || 2:33

|- style="background:#cfc;" | 2025-03-08 || Win ||align=left| Sergey Kosykh || Rajadamnern World Series || Bangkok, Thailand || KO (elbow) || 2||1:33

|- style="background:#cfc;" | 2025-01-07 || Win||align=left| Omar Samb || Ganzberg Kun Khmer || Phnom Penh, Cambodia || KO (Elbow) ||2 || 0:36

|- style="background:#fbb;" | 2024-11-09 || Loss ||align=left| Rittewada Petchyindee Academy || Rajadamnern World Series - Final 4 || Bangkok, Thailand || Decision (Unanimous) ||3 ||3:00

|- style="background:#cfc;" | 2024-10-05|| Win ||align=left| Rasising AyothayaFightGym || Rajadamnern World Series - Group Stage|| Bangkok, Thailand || KO || 3 || 2:17

|- style="background:#cfc;" | 2024-08-31|| Win||align=left| Pavel Hryshanovich|| Rajadamnern World Series - Group Stage|| Bangkok, Thailand || KO (Right cross) ||2 ||1:44

|- style="background:#fbb;" | 2024-07-27|| Loss||align=left| Daniel Rodriguez || Rajadamnern World Series - Group Stage|| Bangkok, Thailand || Decision (Unanimous) ||3 ||3:00

|- style="background:#cfc;" | 2024-04-27|| Win ||align=left| Gabriel Pereira || Rajadamnern World Series || Bangkok, Thailand || KO (Uppercut)|| 1 ||

|- style="text-align:center; background:#fbb" | 2024-03-20|| Loss ||align=left| Romano Bakboord|| K-1 World MAX 2024 - World Tournament Opening Round || Tokyo, Japan || Ext.R Decision (Split) || 4 || 3:00 |- ! style=background:white colspan=9 | |- style="background:#cfc;" | 2023-12-23 || Win ||align=left| Marwen Houli || Rajadamnern World Series || Bangkok, Thailand || KO (Punches) || 2 || 2:10 |- style="background:#cfc;" | 2023-10-07|| Win ||align=left| Yodwicha Por Boonsit || Rajadamnern World Series - Final || Bangkok, Thailand || Decision (Unanimous) || 3 || 3:00 |- ! style=background:white colspan=9 | |- style="background:#cfc;" | 2023-09-09|| Win||align=left| Petchmorakot Petchyindee Academy || Rajadamnern World Series - Final 4|| Bangkok, Thailand || Decision (Split) || 3 || 3:00 |- style="background:#cfc;" | 2023-08-05|| Win||align=left| Kongjak Por.Paoin || Rajadamnern World Series - Group Stage|| Bangkok, Thailand || Decision (Unanimous) || 3 || 3:00 |- style="background:#cfc;" | 2023-07-01|| Win ||align=left| Reza Ahmadnezhad || Rajadamnern World Series - Group Stage|| Bangkok, Thailand || KO (Elbow)|| 3|| 1:35

|- style="background:#fbb;" | 2023-05-27|| Loss ||align=left| Daniel Rodriguez || Rajadamnern World Series - Group Stage|| Bangkok, Thailand ||Decision (Split) || 3||3:00

|- style="background:#cfc" | 2023-04-29 || Win ||align="left" | Shahoo Gheisarian || Rajadamnern World Series || Bangkok, Thailand || TKO (Referee stoppage) || 3 ||0:39

|- style="background:#cfc;" | 2023-03-11 || Win ||align=left| Nauzet Trujillo || KSP Muay Thai|| Kuwait City || KO || 4|| |- ! style=background:white colspan=9 | |- style="background:#cfc;" | 2023-02-04 ||Win ||align=left| Oussama Elkouche || Amazing Muay Thai Festival || Hua Hin, Thailand|| Decision (Unanimous) || 3 || 3:00 |- style="background:#cfc" | 2022-10-28 || Win ||align=left| Mohammad Siasarani || Rajadamnern World Series|| Bangkok, Thailand|| KO (Knee to the body)|| 2 || 1:35 |- style="background:#cfc" | 2022-09-23 || Win ||align=left| Thoeun Theara || Rajadamnern World Series|| Bangkok, Thailand|| Decision (Unanimous) || 3 || 3:00 |- style="text-align:center; background:#cfc;" | 2022-08-19 || Win ||align=left| Mohammad Siasarani || Rajadamnern World Series || Bangkok, Thailand || Decision (Unanimous) || 3 || 3:00 |- style="background:#cfc" | 2022-05-14 || Win||align=left| Valentin Thibaut || Venum Fight, Rajadamnern Stadium || Bangkok, Thailand|| Decision|| 5 ||3:00 |- |- style="background:#cfc;" | 2022-03-12||Win||align=left| Tucker Sorrell || Muay Thai Super Champ|| Phuket, Thailand || Decision ||3 || 3:00 |- style="background:#cfc;" | 2022-01-23||Win||align=left| Maxim Branis || Muay Thai Super Champ|| Phuket, Thailand || Decision ||3 || 3:00 |- style="background:#fbb;" | 2021-04-02|| Loss||align=left| Phetmorakot Petchyindee Academy || True4U Muaymanwansuk, Rangsit Stadium || Rangsit, Thailand ||Decision ||5 ||3:00 |- style="background:#cfc;" | 2020-11-13||Win||align=left| Sorgraw Petchyindee || True4U Muaymanwansuk, Rangsit Stadium || Pathum Thani, Thailand || Decision ||5 || 3:00 |- style="background:#fbb;" | 2020-08-28 || Loss ||align=left| Chujaroen Dabransarakarm || True4U Muaymanwansuk, Rangsit Stadium || Pathum Thani, Thailand || Decision || 5 || 3:00 |- style="background:#cfc;" | 2020-02-28||Win||align=left| Sangmanee Sor Tienpo || Ruamponkonchon Pratan Super Fight || Pathum Thani, Thailand || Decision ||5 || 3:00 |- style="background:#fbb;" | 2020-01-24||Loss||align=left| Yodpanomrung Jitmuangnon || Lumpinee Stadium || Bangkok, Thailand ||Decision || 5 || 3:00 |- ! style=background:white colspan=9 | |- style="background:#cfc;" | 2019-10-15||Win||align=left| Yodpanomrung Jitmuangnon || Lumpinee Stadium || Bangkok, Thailand ||TKO (Doctor Stop/Elbow)|| 4 || |- style="background:#cfc;" | 2019-09-09||Win||align=left| Luo Jie || WBC Muaythai Lumpinee Stadium || Bangkok, Thailand ||TKO || 1 || |- style="background:#cfc;" | 2019-03-08|| Win || align="left" | Jack Kennedy || Fight Night Dubai || United Arab Emirates || Decision (Unanimous) || 3 || 3:00 |- style="background:#fbb;" | 2018-11-27 || Loss ||align=left| Chujaroen Dabransarakarm || Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00 |- style="background:#fbb;" | 2018-10-12 || Loss ||align=left| Rafi Bohic || All Star Muay-Thai || Aubervilliers, France || KO (Low Kick) || 3 || |- ! style=background:white colspan=9 | |- style="background:#cfc;" | 2018-08-25 || Win||align=left| Phonek Or.Kwanmuang|| Omnoi Stadium || Bangkok, Thailand || Decision || 5 || 3:00 |- ! style=background:white colspan=9 | |- style="background:#cfc;" | 2018-07-10 || Win ||align=left| Chujaroen Dabransarakarm || Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00 |- style="background:#cfc;" | 2018-05-18 || Win||align=left| Rambo Pet.Por.Tor.Or || Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00 |- ! style=background:white colspan=9 | |- style="background:#cfc;" | 2018-03 || Win||align=left| Rambo Pet.Por.Tor.Or|| || Phra Nakhon Si Ayutthaya, Thailand || Decision || 5 || 3:00 |- ! style=background:white colspan=9 | |- style="background:#cfc;" | 2018-02-07 || Win||align=left| Brayan Matias|| Muaythai Day || Bangkok, Thailand || Decision || 5 || 3:00 |- ! style=background:white colspan=9 | |- style="background:#fbb;" | 2018-01||Loss||align=left| Yodpanomrung Jitmuangnon || || Yala Province, Thailand ||Decision || 5 || 3:00 |- style="background:#fbb;" | 2017-12-31 || Loss||align=left| Lao Chantrea || Carabao Stadium || Phnom Penh, Cambodia || Decision || 5 || 3:00 |- style="background:#cfc;" | 2017-12-03 || Win||align=left| Navee J-Powerroof Puket || Rangsit Stadium || Pathum Thani, Thailand || KO (Knees) || 3 || |- style="background:#cfc;" | 2017-09-07 || Win||align=left| Joshua Suramach || Thai Fight Samui || Koh Samui, Thailand || KO (Knees) || 2 || |- style="background:#cfc;" | 2017-07-15 || Win||align=left| Ryan Jakiri || Thai Fight Yala || Thailand || KO (Knee) || 2 || |- style="background:#cfc;" | 2017-05-07 || Win||align=left| Simanut Sor.Sarinya || Rangsit Stadium || Pathum Thani, Thailand || KO (Knees) || 4 || |- style="background:#cfc;" | 2017-04-09 || Win||align=left| Vinailek Sor.Jor.Vichitpadriew || Rangsit Stadium || Pathum Thani, Thailand || TKO (Doctor Stop/Elbow) || 1 || |- style="background:#cfc;" | 2017-03-10 || Win||align=left| Monsiam Lukmuangphet || Lumpinee Stadium || Bangkok, Thailand || KO || 4 || |- style="background:#fbb;" | 2017-01-29 || Loss||align=left| Simanut Sor.Sarinya || Rangsit Stadium || Pathum Thani, Thailand || Decision || 5 || 3:00 |- style="background:#cfc;" | 2017-01-08 || Win ||align=left| Phetsaifah Sor.Jor.Vichitpadriew || Rangsit Stadium || Pathum Thani, Thailand || Decision || 5 || 3:00 |- style="background:#cfc;" | 2016-12-11 || Win ||align=left| Taksila Chor.Hapayak || Rangsit Stadium || Pathum Thani, Thailand || KO || 4 || |- style="background:#cfc;" | 2016-09-18 || Win ||align=left| Fahnimit Wiriyafarm || Rangsit Stadium || Pathum Thani, Thailand || Decision || 5 || 3:00 |- style="background:#cfc;" | 2016-08-26 || Win ||align=left| Mongkol Kor.Kampanath || Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00 |- style="background:#fbb;" | 2016-05-17 ||Loss ||align=left| Mongkonngoen Aesapansung || Lumpinee Stadium || Bangkok, Thailand || KO || 3 || |- style="background:#cfc;" | 2016-04-05 ||Win||align=left| Hapayak Sitpupantoo || Lumpinee Stadium || Bangkok, Thailand ||Decision || 5 || 3:00 |- style="background:#cfc;" | 2016-03-14 ||Win||align=left| Lotus Tor.Tewin || Rajadamnern Stadium || Bangkok, Thailand ||Decision || 5 || 3:00 |- style="background:#cfc;" | 2016-02-13 ||Win||align=left| Fahmeta Tambangsai || Lumpinee Stadium || Bangkok, Thailand ||Decision || 5 || 3:00 |- style="background:#fbb;"