Full name
Saensak Muangsurin

Birthdate
August 13, 1950

Date of death
April 14, 2009

Debut
On November 16, 1974, in Bangkok, Thailand, he knocked out Rudy Barro in one round.

won the world title
On July 15, 1975, Bangkok technically knocked out Spanish Pedro"Perico"Fernández in eight rounds and kept the WBC super lightweight belt. He recovered the WBC super lightweight belt in the rematch with Miguel Velázquez, on October 29, 1976 in Castilla, Spain, winning by technical knockout in two rounds.

Lost His Title
In his second defense with the Spanish Miguel Velázquez, on June 30, 1976 in Madrid, when he fell by disqualification. His second crown was lost in his eighth defense, on December 30, 1978 in Seoul, South Korea, against local Sang-Hyun Kim, who defeated him by technical knockout in 13 rounds.

Withdrawal
On April 5, 1981, in Thailand, Chung-Jae Hwang won a decision when they fought for the Pacific welterweight belt.