Question 1

What is a good win rate?

Accepted Answer

It depends entirely on your reward-to-risk. At 2:1 you can win just 34% and profit; at 0.5:1 you need to win over 67%. Win rate alone is meaningless without the payoff attached to it.

Question 2

Why can a high win rate still lose?

Accepted Answer

Because a trader who wins 90% of the time but lets the 10% run into huge losses can still be net negative. Win rate must be weighed against average win versus average loss — that is what break-even captures.

勝率と損益分岐点の計算ツール

勝率は半分です