Sirichai Chaiyaporn (Thai: ศิริชัย ชัยยาภรณ์; born June 9, 1999), known professionally as Samingdet Nor.Anuwatgym (Thai: สมิงเดช น.อนุวัฒน์ยิม, is a Thai Muay Thai fighter. He is the current Rajadamnern Stadium Lightweight Champion, former Rajadamnern Stadium Super Featherweight Champion, and former WBC Muay Thai World Super Featherweight Champion.

As of October 2024, he is ranked #2 and #5 at Lightweight in Muay Thai according to the WMO and Combat Press respectively.^[1][2]

In April 2019, he took on the #6 ranked Lumpini bantamweight Detchaiya Petchyindee at the Rajadamnern Stadium.^[3] Samingdet won the fight by a third round TKO.^[4]

Samingdet fought for the 118lbs True4u Muaymumwansuek title against Yothin FA Group in August 2019. The fight ended in a decision draw.^[5]

Samingdet was scheduled to fight Dechsakda Sor-Jor Tongprajin in the Rangsit Stadium for the vacant WBC Muaythai World Super Featherweight title in July 2020. The fight was cancelled as Dechsakda had complications cutting weight, and had to be transported to the hospital.^[6] The fight was rescheduled for September 2020.^[7][8] He put in a dominating performance, winning the first two rounds 10-9 on the judges' scorecards, before knocking Dechsakda out in the third round with a left elbow.^[9]

• World Boxing Council Muay Thai
  • 2020 WBC Muay Thai World Featherweight (130 lbs) Champion

• Rajadamnern Stadium
  • 2020 Rajadamnern Stadium Super Featherweight (130 lbs) Champion^[10]
  • 2023 Rajadamnern World Series Lightweight (135 lbs) Runner-up
  • 2024 Rajadamnern Stadium Lightweight (135 lbs) Champion^[11]
    • Three successful title defenses

• True4U Petchyindee
  • 2022 True4U Super Featherweight (130 lbs) Champion

• International Federation of Muaythai Associations
  • 2021 IFMA World Championships U-23 −63.5 kg

Muay Thai Record

Date	Result	Opponent	Event	Location	Method	Round	Time
2024-11-30	Win	Savvas Michael	Rajadamnern World Series	Bangkok, Thailand	Decision (Split)	5	3:00
Defends the Rajadamnern Stadium Lightweight (135 lbs) title.
2024-10-10	Loss	Lamnamoonlek Tded99	Petchyindee, Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
2024-08-11	Win	Jaruadsuek SorJor.VichitPadriew	Muaydee VitheeThai, Thupatemi Stadium	Pathum Thani, Thailand	Decision	5	3:00
2024-07-13	Win	Savvas Michael	Rajadamnern World Series	Bangkok, Thailand	Decision (Unanimous)	5	3:00
Defends the Rajadamnern Stadium Lightweight (135 lbs) title.
2024-05-25	Win	Thongnoi Wor.Sangprapai	Rajadamnern World Series	Bangkok, Thailand	Decision (Unanimous)	5	3:00
Defends the Rajadamnern Stadium Lightweight (135 lbs) title.
2024-04-18	Win	Thanupetch Wor.Sangprapai	Petchyindee, Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
2024-03-23	Win	Jom Parunchai	Rajadamnern World Series	Bangkok, Thailand	Decision (Unanimous)	5	3:00
Wins the Rajadamnern Stadium Lightweight (135 lbs) title.
2024-02-12	Win	Yota Shigemori	Rajadamnern World Series Japan	Tokyo, Japan	Decision (Unanimous)	3	3:00
2023-12-27	Draw	Chalam Parunchai	Rajadamnern Stadium 78th Birthday Show	Bangkok, Thailand	Decision	5	3:00
2023-09-30	Loss	Lamnamoonlek Tded99	Rajadamnern World Series - Final	Bangkok, Thailand	Decision (Unanimous)	5	3:00
For the 2023 Rajadamnern World Series 135 lbs title.
2023-08-26	Win	Petchdam Petchyindee Academy	Rajadamnern World Series - Final 4	Bangkok, Thailand	Decision (Unanimous)	3	3:00
2023-07-22	Win	Diae Bezhad Warrior Academy	Rajadamnern World Series - Group Stage	Bangkok, Thailand	Decision (Unanimous)	3	3:00
2023-06-17	Loss	Lamnamoonlek Or.Atchariya	Rajadamnern World Series - Group Stage	Bangkok, Thailand	Decision (Unanimous)	3	3:00
2023-05-13	Win	Renta Wor.Wanchai	Rajadamnern World Series - Group Stage	Bangkok, Thailand	Decision (Unanimous)	3	3:00
2023-04-11	Loss	Kompatak SinbiMuayThai	Muaymansananmuang Mahasarakham	Maha Sarakham province, Thailand	Decision	5	3:00
2023-02-27	Win	Khim Bora	Kun Khmer All Star	Phnom Penh, Cambodia	Decision	3
2023-02-16	Win	Flukenoi Kiatfahlikit	Petchyindee, Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
2022-11-12	Loss	Thongnoi Wor.Sangprapai	Muay Thai Vithee Tin Thai + Petchyindee Sanjorn	Chiang Rai province, Thailand	KO	5
2022-10-21	Win	NuengUbon Or.Atchariya	Muaymanwansuk, Rangsit Stadium	Pathum Thani, Thailand	KO (Elbows)	3
2022-09-17	Win	Songkom Bangkokalaiyon	Muay Thai Witee Tin Thai Muang Nam Dam	Kalasin Province, Thailand	KO (Left Elbow)	3
2022-07-01	Loss	Kompatak Or.Atchariya	True4U Muaymanwansuk, Rangsit Stadium	Pathum Thani, Thailand	Decision	5	3:00
Loses True4U 130 lbs title.
2022-05-12	Loss	Chorfah Tor.Sangtiennoi	Petchyindee, Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
2022-03-24	Loss	Nabil VenumMuayThai	Petchyindee, Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
2022-02-11	Win	Kompatak Or.Atchariya	True4U Muaymanwansuk, Rangsit Stadium	Pathum Thani, Thailand	Decision	5	3:00
Wins the vacant True4U 130 lbs title.
2021-12-16	Draw	Flukenoi Kiatfahlikit	Petchyindee, Rangsit Stadium	Rangsit, Thailand	Decision	5	3:00
2021-03-11	Loss	Kompatak SinbiMuayThai	True4U Muaymanwansuk, Rangsit Stadium	Pathum Thani, Thailand	Decision	5	3:00
2020-10-23	Loss	Rangkhao Wor.Sangprapai	True4U Muaymanwansuk, Rangsit Stadium	Pathum Thani, Thailand	Decision	5	3:00
2020-09-18	Win	Dechsakda Sor-Jor Tongprajin	Petchyindee, Rangsit Stadium	Pathum Thani, Thailand	KO (Left Elbow)	3
Wins WBC Muay Thai World 130 lbs title.
2020-07-10	Win	Thanapetch Wor.Sangprapai	True4U Muaymanwansuk, Rangsit Stadium	Pathum Thani, Thailand	Decision	5	3:00
2020-01-31	Loss	Pompetch Sor.Samakphong	Phuket Super Fight Real Muay Thai	Mueang Phuket District, Thailand	Decision	5	3:00
2020-01-02	Win	Thanapetch Wor.Sangprapai	Rajadamnern Stadium	Bangkok, Thailand	KO (Left Elbow)	3
Wins Rajadamnern Stadium 130 lbs title.
2019-11-21	Win	Yothin FA Group	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
2019-10-24	Win	Fluknoi Muayded789	Rajadamnern Stadium	Bangkok, Thailand	KO (Left Elbow)	4
2019-10-03	Loss	Yothin FA Group	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
2019-08-09	Draw	Yothin FA Group	Petchyindee True4U Lumpinee Stadium	Bangkok, Thailand	Decision	5	3:00
For The 118lbs True4u Muaymumwansuek title.
2019-06-13	Win	Detchaiya PetchyindeeAcademy	Rajadamnern Stadium	Bangkok, Thailand	TKO (Right Elbow)	3
2019-04-04	Win	Puenkol Diamond98	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
Wins the 3 Million baht side-bet.
2019-03-01	Loss	Boonlong PetchyindeeAcademy	Lumpinee Stadium	Bangkok, Thailand	Decision	5	3:00
2019-01-30	Draw	Kimluay Santi-Ubon	Lumpinee Stadium	Bangkok, Thailand	Decision	5	3:00
2018-12-26	Win	Boonlong PetchyindeeAcademy	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
2018-11-26	Win	Thongnoi Lukbanyai	Rajadamnern Stadium	Bangkok, Thailand	KO (Left High Kick)	4
2018-10-10	Win	Thongnoi Lukbanyai	Rajadamnern Stadium	Bangkok, Thailand	KO (Left Elbow)	3
2018-09-13	Win	Kimluay Santi-Ubon	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
2018-08-17	Win	Yodwitthaya Sor.Sirilak	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
2018-07-06	Win	Kaemphet Pumphanmuang	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
2018-04-09	Loss	Saenson Erawan	Rajadamnern Stadium	Bangkok, Thailand	KO (Knees to the thigh)	4
2018-01-10	Loss	Thongnoi Lukbanyai	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
2017-12-01	Loss	Yokmorakot Wor.Sangpapai	Rajadamnern Stadium	Bangkok, Thailand	TKO (Doctor Stoppage)	4
2017-11-10	Win	Thongnoi Lukbanyai	True4u Rangsit Stadium	Rangsit, Thailand	Decision	5	3:00
2017-09-22	Win	Numthai Phetnongki	True4u Rangsit Stadium	Rangsit, Thailand	TKO (Referee Stoppage)	4
2017-08-25	Win	Yodsiam FighterMuaythai	True4u Rangsit Stadium	Rangsit, Thailand	Decision	5	3:00
2017-07-06	Loss	Khemphet Poomphanmuang	Rajadamnern Stadium	Bangkok, Thailand	KO	3
2017-05-29	Loss	Dodoh Lookkhokrak	Rajadamnern Stadium	Bangkok, Thailand	KO	3
2017-04-14	Win	Yodsiam FighterMuaythai	True4u Rangsit Stadium	Pathum Thani, Thailand	KO	2
2017-02-03	Win	Jaroenphon Popthirathum	True4u Rangsit Stadium	Pathum Thani, Thailand	KO (Left Elbow)	4
2017-01-06	Loss	Saenson Erawan	True4u Rangsit Stadium	Pathum Thani, Thailand	Decision	5	3:00
2016-11-25	Loss	Praewprao PetchyindeeAcademy	True4u Rangsit Stadium	Pathum Thani, Thailand	KO	2
For the True4U Mini Flyweight title.
2016-10-05	Win	Rit Sor.Visetkit	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
2016-08-29	Loss	Thongrob Lukbanyai	Rajadamnern Stadium	Bangkok, Thailand	KO	4
2016-08-01	Win	Rit Sor.Visetkit	Rajadamnern Stadium	Bangkok, Thailand	KO	4
2016-05-18	Win	Robert Fightermuaythai	Rajadamnern Stadium	Bangkok, Thailand	KO	4
2016-04-25	Win	Pepsi Or.Prasert	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
2016-03-07	Win	Prabphairi PookongyadsubDomsuk	Rajadamnern Stadium	Bangkok, Thailand	KO	2
2016-02-17	Win	Phetsakol Sitballsakol99	Rajadamnern Stadium	Bangkok, Thailand	KO	3
2016-01-09	Loss	Sangfah Nor.Anuwatgym	Lumpinee Stadium	Bangkok, Thailand	Decision	5	3:00
2015-11-30	Loss	Sangfah Nor.Anuwatgym	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
2015-10-27	Win	Sangsakda Teemuangloei	Lumpinee Stadium	Bangkok, Thailand	Decision	5	3:00
2015-08-03	Win	Paingern Singnawa-Awute	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
2015-07-03	Win	Paingern Singnawa-Awute	Lumpinee Stadium	Bangkok, Thailand	Decision	5	3:00
Legend:   Win   Loss   Draw/No contest   Notes

Amateur Muay Thai Record

Date	Result	Opponent	Event	Location	Method	Round	Time
2021-12-10	Loss	Jalil Barnes	2021 IFMA World Championships U-23, Semi Finals	Bangkok, Thailand	Decision (29:28)	3	3:00
Wins the 2021 IFMA World Championships U-23 -63.5kg Bronze Medal.
2021-12-09	Win	Márk Rehák	2021 IFMA World Championships U-23, Quarter Finals	Bangkok, Thailand	TKO	2
2021-12-08	Win	David Sinclair	2021 IFMA World Championships U-23, Round 2	Bangkok, Thailand	TKO	2
Legend:   Win   Loss   Draw/No contest   Notes

• List of male kickboxers