Roulette spintech machine

I have been tracking this wheel for a while for around 8500 spins. Data is as follows, wheels seems not random from looking at the behaviour but raw data seems border random and bias wheel. Any one has experience on spintech machine? Number 8,30,2,9,35 seems bias but standard deviation and chisquare is not high enough. I started playing the wheel at 6000 spins at the table minimum, profit is 9000dollars betting $10dollars each number.