Sagetdao Petpayathai

Sagetdao suffered his first defeat in MMA on June 30, 2018. He was announced as winning his bout with Ma Jia Wen by unanimous decision, but the result was later overturned, and the win was awarded to Ma.

In 2017, Sagetdao began a career in mixed martial arts. He signed for the Singapore-based organization ONE Championship. He made his debut that March, with a first-round TKO of Kevin Ong. He finished the year with two more first-round stoppage victories, against Mahmoud Mohamed and Jimmy Yabo.

In February 16, 2014, Sagetdao suffered his first TKO loss and first foreigner loss to Qiu Jianliang. He was rocked numerous times by Qiu's punches during the course of the fight. Finally, he was knocked down by a straight left punch to the chin. The referee called the stoppage to the fight after Qiu finished him with flurry of punches in the last 10 seconds of the fight.

He rematched Singdam Kiatmuu9 at Lumpinee on March 8, 2013 and lost on points.

On 5 April 2013 he beat Umar Semata at Muay Thai Warriors in Pattaya to win the Muay Thai Warriors World Super Featherweight Title.

He defended his WBC super lightweight title against Tetsuya Yamato at M-One: Reborn in Highland, California, USA on May 16, 2013, defeating the Japanese challenger via TKO due to a cut in round four.

He lost to Pakorn Sakyotin by unanimous decision at Lumpinee on June 9, 2013.

He won the four-man 68 kg tournament at MAX Muay Thai 3 in Zhengzhou, China on August 10, 2013., beating Liam Harrison by decision in the semi-finals and defeating Zhang Dezhang after an extension round in the final.

He beat two opponents on points, Andrei Kulebin in the semi-finals and Victor Nagbe in the final, to win the tournament at MAX Muay Thai 5: The Final Chapter in Khon Kaen, Thailand on December 10, 2013.

In 2010 he beat fellow clinch master, Petboonchu FA Group, and closed the year out strong by stopping Denkiri Sor. Sommai with a body punch that would be voted channel 7 fight of the year. In 2011 he beat Nong-O Sit Or, Petboonchu FA Group, Saenchai Sinbimuaythai, and Singdam Kiatmuu9. In October he would once again fight abroad, this time in America, his opponent was American, Kevin Ross. This fight was for the WBC Diamond super lightweight belt and Sagetdao would win with a stoppage at the end of round 3 because of a large cut on Ross's head from an elbow. In 2012 he lost his first 3 fights. In his 4th fight of the year he beat Petboonchu FA Group, and in his 5th he beat Penek Sitnumnoi He beat Sofiane Derdega to retain the WBC super lightweight championship.

In 2009 he participated in a special rules fight where he teamed with Petboonchu FA Group to take on #1 fighter, Saenchai Sinbimuaythai and the duo was defeated. After losing to Saenchai, Sagetdao would go to England and fight their best fighter, Liam Harrison. Sagetdao frustrated the Englishman with hard kicks and survived big punches to earn a decision. After this victory, Sagetdao would once again meet up with Saenchai, but this time he was doing it on his own. The fight took place at the annual year-end Lumpini stadium birthday show. Most expected Saenchai to win comfortably, Sagetdao, however, had other plans, and he stunned the crowd by beating Saenchai over 5 rounds.

In 2007, he captured stadium titles at both Lumpinee Boxing Stadium and Rajadamnern Boxing Stadium. By 2008, he was a household name in the Muay Thai world and made the top fighters take notice when he knocked out veteran Nongbee Kiatyongyut on a Channel 7 broadcast.

Sagetdao Petpaiyathai (Thai: สะเก็ดดาว เพชรพญาไท; born January 1, 1987) is a retired Muay Thai fighter from Thailand. He is a former Lumpinee Stadium champion and was known for his strong knee and clinch style of fighting. He now teaches at Evolve MMA in Singapore.