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.
In 2009 he participated in a special rules fight where he teamed with Petchboonchu FA Group to take on #1 fighter, Saenchai Sinbimuaythai and the duo was defeated.
Sagetdao frustrated the Englishman with hard kicks and survived big punches to earn a decision.
In 2010 he beat fellow clinch master, Petchboonchu FA Group, and closed the year out strong by stopping Denkiri Sor.
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.
He defended his WBC super lightweight title against Tetsuya Yamato at M-One: Reborn in Highland, California, US on May 16, 2013, defeating the Japanese challenger via TKO due to a cut in round four.
[17] He won the four-man 68 kg tournament at MAX Muay Thai 3 in Zhengzhou, China on August 10, 2013.,[18][19] beating Liam Harrison by decision in the semi-finals and defeating Zhang Dezhang after an extension round in the final.
His faced Zhang Chunyu, with it being his first time competing under the ONE Super Series ruleset, as well as his first Muay Thai fight since 2014.