Risk/Reward Ratio: The Only Trading Math That Matters

Why R:R matters more than win rate

At 1:2 R:R you only need a 34% win rate to break even. At 1:3, 25%. At 1:1, you need 50% plus commissions. Most new traders obsess over win rate and ignore R:R — they win 60% of their trades at 1:0.5 and still lose money because the losers are bigger than the winners. The math is brutal and unavoidable.

How to actually set R:R

Two methods. Method 1 (preferred): define stop first based on market structure (invalidation point), then check if the target (structural resistance/support) is at least 2x away. If not, skip the trade. Method 2: fix R:R target (say 1:2.5) and place stop + target using that ratio. Method 1 works better because it respects the market structure; method 2 is curve-fitted to a number.

Managing R:R mid-trade

Never move your stop further from entry mid-trade. Never. This single rule eliminates most catastrophic trades. Moving a stop "to give it more room" is just justifying averaging-down behaviour that blows accounts. If your initial stop was wrong, exit at the stop and take the next setup.