What R:R tells you
R:R compares what you could make to what you could lose. A 1:3 trade risks $100 to make $300. The higher the R:R, the lower the win rate you need: Break-even win rate = 1 ÷ (1 + RR).
A high R:R only helps if price can realistically reach the target. Open the Edge Map to check your real win rate at that R:R.