Double or Nothing Scaling

Quoting FerruFx

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{quote} My point was not about the spread. Most traders forgot the RR into the profitability equation. Winrate alone isn't enough to say a strategy is profitable. In my example of 99% winrate, if the remaining 1% is a loss bigger than the previous 99% profit, the final result is a loss ... despite the 99% winrate ... not even taking into account the spread.

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Quoting Hmsr

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In reference to the 90 percent winrate, I was talking about Gann who is a legendary trader, so ofc that would be the best of the best. And in terms of the RR, ofcourse I am not referencing to those 1 pip win 10 pip stoplosses. Nor do I have a 90 percent winrate, I was wondering whether applying martingale to an extremely high winning strategy with suppose 1:1 R:R is sensible. Eg, suppose witha 90% winrate, 1:1 risk, and you take 20 trades, maximum 2 trades lost, so you may aswell martingale away the losses right since the most losses you could have...

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