 On January 27, 2018, he defeated Henrique Muller of Brazil by KO in the 3rd round at THAI FIGHT Bangkok 2017 to win the 2017 THAI FIGHT 67kg King's Cup title, his second THAI FIGHT championship.Saenchai then stopped Iran's Ramin Moazzami by 1st-round KO on March 24, 2018 at THAI FIGHT Mueang Khon 2018.On April 21, 2018, he defeated Italy's Luca Roma THAI FIGHT Italy 2018 by unanimous decision.