Why do trading strategies with very high win rates often lead to blowups? When I first started trading, I was obsessed with win rate. Eight wins out of ten trades seemed far more reliable than only four wins out of ten. Later, I realized that win rate is just surface-level—what truly determines whether you survive is your profit-loss structure. Grid trading, holding losing positions, and constant averaging down often create impressive win rates. In sideways markets, every pullback seems to rescue your trades; for months on end, you experience almost no losses, and your confidence grows—so you increase your position size. Then, when the market finally makes a strong directional move, all those dozens of small profits vanish in a single loss. I once had a strategy that rarely used stop-losses. My account curve looked stable, and friends thought I’d found the holy grail. But it wasn’t that I was right more often—it was that I kept postponing the recognition of losses. Eventually, when extreme market conditions hit, small losses ballooned into massive ones, turning into positions I couldn’t manage. A strategy shouldn’t be judged only by how often it wins—but by how much you lose when you’re wrong, and whether you can survive consecutive mistakes. Win nine times, earning 1% each time, then lose 30% on the tenth—high win rate simply means slow, steady path to total ruin. Trading isn’t an exam scored by the number of correct answers. Remember: Win rate makes you feel smart. Profit-loss ratio and risk limits are what determine whether you can stay in the market long-term.