You guys can simulate here
http://roulette-simulator.info/simulator/i...0923824FUGE2P8A

I made a spreadsheet. To be honest with rm200 initial with only 4 tries (50 x 4) is not viable in long run.. your martingale system can only last 2 rounds. if 2 round lose then modal habis kelentong. On the other hand, you use Rm200 modal, and when you win around rm50-100, your psychology ask you to cabut.

Make it 10 sessions. win 5 session lose 5 sessions. Winnings = 5 x 100 = 500... Losers= 5 x 200 = 1000,,

So in the end your win:lose ratio is 0.5. To improve one should set it in mind whats their desired % winnings over initial capital. if aim to win 20% capital, then your maximum acceptable loss should be lower than 20% thus in the long run winners > losers.

But the betting on opposite colours after 5-6 consecutive same colours make sense la in terms of probability, though its worth to note past performance does not indicate future actions. I tried the simulator and kena 10 blacks before, and from 6th to 9th round i bet red, lol.