Saensak Muangsurin has six losses against six opponents on his boxing record. For a list of Muangsurin's best fights, refer to "Best fights of Saensak Muangsurin".
On April 5, 1981 Saensak Muangsurin faced off against Chung-Jae Hwang in a welterweight bout at age 30. He was coming in with a record of 14-6 (11). Muangsurin lost the fight via 12-round majority decision.
On November 13, 1980 Saensak Muangsurin faced off against Andoni Amana at age 30. He was coming in with a record of 14-5 (11). Muangsurin lost the fight via 10-round unanimous decision.
On October 18, 1979 Saensak Muangsurin faced off against Thomas Hearns at age 29. He was coming in with a record of 13-4 (10), and Hearns was 21 years old and with a record of 22-0 (21). Muangsurin lost the fight via 3rd-round TKO.
On July 20, 1979 Saensak Muangsurin faced off against Dan DeGuzman at age 28. He was coming in with a record of 13-3 (10). Muangsurin lost the fight via 10-round split decision.
On December 30, 1978 Saensak Muangsurin met Sang-Hyun Kim in a super-lightweight (WBC) world-title defense fight. Muangsurin was 28 years old and with a record of 13-2 (10). Muangsurin lost the fight via 13th-round TKO and lost the title.
On June 30, 1976 Saensak Muangsurin met Miguel Velasquez in a super-lightweight (WBC) world-title defense fight. Muangsurin was 25 years old and with a record of 5-1 (4). Muangsurin lost the fight via 4-round disqualification and lost the title.