I have been to 2 other Kickboxing stadiums and events in Phuket and this was poor.
All fights were mismatched and over in the first minute or so because the fighters were unfit or poor fighters.
It was advertised as real fights but they were far from it. Even the person I got the tickets off said it was not authentic.
Advertised fighters also did not fight and to allow drunk patrons into the stadium and in one case into the boxing ring was pathetic and made a mockery of the national sport.
Do not waste your money and go to a more traditional older stadium if you want to watch competitive fights.
If you really just want to tick it off your list then go to this stadium.