Roulette players using the Martingale strategy lookout for a streak of at least six Reds or Blacks.
It thus follows that you should avoid betting when you see a long streak.
If you follow the advice in tip 1, it’s a good idea to have a stop loss just in case the streak does continue.
You should be aware that the Martingale strategy in an of itself doesn’t suggest when or where you should bet.
Using my tweak of the Martingale strategy sees a Roulette player betting only twice when trying to profit from a streak.