Kru Day is a multiple-time Muay Thai World Champion and Boxing Champion. He has accumulated more than 300 professional Muay Thai fights and has fought some of the greatest Muay Thai legends out there, such as Superlek Kiatmookao, Wanchai Kiatmookao, Satanmuanglek Por.Satanmuang, and Wanheng Menayothin. He won three championship belts in two different weight classes in Rajadamnern Stadium and Lumpinee Boxing Stadium.
After moving under Petchyindee Boxing Promotion, he adopted the name "Palangpol Petchyindee Academy" and started his professional boxing career. He competed in Muay Thai and Professional Boxing alternately, winning the WBA Asia Light Flyweight Title in 2014 and was highly ranked by the WBO.
- 2015 interim WPMF World Flyweight Boxing Champion
- 2014 WBA Asia Light Flyweight Champion
- 2008 Rajadamnern Stadium 108 lbs Champion
- 2005 Rajadamnern Stadium 105 lbs Champion
- 2003 Lumpinee Stadium 105 lbs Champion