He won one of the major boxing titles in his 3rd professional fight, 241 days after his debut, which is still the record after 48 years.

Nicknamed the "World Collapsing Southpaw", he is often regarded as one of the most fearsome punchers in Muay Thai history.

Saensak started fighting in Muay Thai and fought in numerous matches, some held in Japan prior to winning the world title.

He has faced many top Muay Thai fighters such as Poot Lorlek, Vicharnnoi Porntawee, Pudpadnoi Worawut, Khunpon Sakornpitak, Wisan Kraigriengyuk, Kongdej Lookbangplasroy, and Sirimongkol Luksiripat.

He won the Lumpinee Stadium junior welterweight title by knocking out Sorrasak Sor Lukbookalo in just the first round in 1971.

[3] Saensak made his formal professional boxing debut on November 16, 1974, with a first-round knockout win.

He fell into relative obscurity from then on, losing both of his fights in 1979, one of which was a third-round knockout loss to Thomas Hearns.