On October 29, 1976, Saensak Muangsurin and Miguel Velasquez met again in an immediate rematch.
Muangsurin came in to the fight on a 1-fight losing streak with a 66% KO rate, and was fighting after a gap of 3 months and 29 days.
Saensak Muangsurin made very easy work of Miguel Velasquez in the rematch, stopping the champion via TKO in the 2nd. Muangsurin improves his record to 6-1 (5 KOs)
On April 2, 1977, the 26-year-old WBC super-lightweight world champion, Saensak Muangsurin (7-1, 6 KOs), faced Guts Ishimatsu, in a title defense fight.
Muangsurin came in to the fight on a 2-fight win streak with a 75% KO rate, and was fighting after a gap of 2 months and 18 days.
Saensak Muangsurin stopped Guts Ishimatsu via KO in the 6th round of the 15-round world-title fight, and successfully defended his WBC super-lightweight title. Muangsurin improves his record to 8-1 (7 KOs)
On July 15, 1975, a 24-year-old Saensak Muangsurin (2-0, 2 KOs) got a shot at the WBC super-lightweight title held by Perico Fernandez.
Muangsurin came in to the fight on a 2-fight win streak with a 100% KO rate, and was fighting after a gap of 4 months and 29 days.
Saensak Muangsurin stopped the champion via KO in the 8th round of the 15-round world-title fight, winning the first world title of his career, and is crowned the new WBC super-lightweight champion. Muangsurin improves his record to 3-0 (3 KOs)
On August 20, 1977, the 27-year-old WBC super-lightweight world champion, Saensak Muangsurin (9-1, 7 KOs), faced Mike Everett, in a title defense fight.
Muangsurin came in to the fight on a 4-fight win streak with a 70% KO rate, and was fighting after a gap of 2 months and 3 days.
Saensak Muangsurin stopped Mike Everett via TKO in the 6th round of the 15-round world-title fight, and successfully defended his WBC super-lightweight title. Muangsurin improves his record to 10-1 (8 KOs)
On April 8, 1978, the 27-year-old WBC super-lightweight world champion, Saensak Muangsurin (12-1, 9 KOs), faced Francisco Moreno, in a title defense fight.
Muangsurin came in to the fight on a 7-fight win streak with a 69% KO rate, and was fighting after a gap of 3 months and 9 days.
Saensak Muangsurin stopped Francisco Moreno via TKO in the 13th round of the 15-round world-title fight, and successfully defended his WBC super-lightweight title. Muangsurin improves his record to 13-1 (10 KOs)
On June 17, 1977, Saensak Muangsurin and Perico Fernandez met again in a rematch.
Muangsurin came in to the fight on a 3-fight win streak with a 77% KO rate, and was fighting after a gap of 2 months and 15 days.
Saensak Muangsurin defeated Perico Fernandez via unanimous decision in the rematch and successfully defended his WBC super-lightweight title. Muangsurin improves his record to 9-1
On December 30, 1977, the 27-year-old WBC super-lightweight world champion, Saensak Muangsurin (11-1, 8 KOs), faced Jo Kimpuani, in a title defense fight.
Muangsurin came in to the fight on a 6-fight win streak with a 66% KO rate, and was fighting after a gap of 2 months and 7 days.
Saensak Muangsurin stopped Jo Kimpuani via TKO in the 14th round of the 15-round world-title fight, and successfully defended his WBC super-lightweight title. Muangsurin improves his record to 12-1 (9 KOs)
On January 15, 1977, the 26-year-old WBC super-lightweight world champion, Saensak Muangsurin (6-1, 5 KOs), faced Monroe Brooks, in a title defense fight.
Muangsurin came in to the fight on a 1-fight win streak with a 71% KO rate, and was fighting after a gap of 2 months and 17 days.
Saensak Muangsurin stopped Monroe Brooks via TKO in the final round of the 15-round world-title fight, and successfully defended his WBC super-lightweight title. Muangsurin improves his record to 7-1 (6 KOs)
On January 25, 1976, Saensak Muangsurin and Lion Furuyama met again in a rematch.
Muangsurin came in to the fight on a 4-fight win streak with a 100% KO rate, and was fighting after a gap of 1 month and 12 days.
Saensak Muangsurin defeated Lion Furuyama via unanimous decision in the rematch and successfully defended his WBC super-lightweight title. Muangsurin improves his record to 5-0
On October 23, 1977, the 27-year-old WBC super-lightweight world champion, Saensak Muangsurin (10-1, 8 KOs), faced Saoul Mamby, in a title defense fight.
Muangsurin came in to the fight on a 5-fight win streak with a 72% KO rate, and was fighting after a gap of 2 months and 3 days.
Saensak Muangsurin defeated Saoul Mamby via split decision and successfully defended his WBC super-lightweight title. Muangsurin improves his record to 11-1