Kai has been in the Muay Thai scene since 2007. He has developed a strong passion in this martial art and has competed actively in both Singapore and Thailand. He won a Championship title belt in Udon Thani and also represented Singapore to compete in Thailand's highest level competition ground, the Lumpinee Boxing Stadium.
- Represented Singapore in Lumpinee Boxing Stadium
- Title belt holder in Thailand, Udon Thani
- Silver Medalist for Singapore in Thailand Amateur Competition (Prince's Cup 2008)
- Singapore Amateur Muay Thai Champion