One trader has a 60% win rate but his portfolio is down 6% using a 2/1 risk-reward.
Another trader has a 30% win rate but his portfolio is up 12% using a 1/5 risk-reward.
So, it’s necessary to have very strict rules on risk management that help you to always preserve the capital and not to take crazy risks.
Is a "win rate" really such a thing in crypto trading? From what I know a win rate is something being used by those odd pickers in gambling but not in trading because there is no such thing as a win rate for a trader since the market is to volatile to guarantee such trader being accurate in the market. Risk management is also barely used in the trading lingo but I believ what you are trying to say when risk management is involved is the cutting of losses of a trader to the bare minimum. In your example where the trader have lost 15% of his capital this can be something mitigated or avoided if the trader react way earlier or has a back up plan/ exit strategy when the target price failed to hold, maybe losing only up to 5% is what you will be looking for if you are trying to manage your risk.
In talks of chances then it cant really be considered or known but everything would be seen on how you did perform well overall.Also that winning rate might pertain to success rate so it isnt really a serious matter though.Risk management is important because if you dont have this then you are basically doing gambling and not trading.You would really need to set up everything to reduce risk as much as you can even though
losses are inevitable but this can be reduced if you do know on how to set things up.People do normally forget this thing until they've bust out.