My horse pulls away or drags me on the lunge line — how do I stop it?

A horse that pulls on the lunge line or drifts outward against constant tension has not learned to maintain its own position on the circle — it is either pushing against the pressure habitually or genuinely does not understand that the line has boundaries. The first thing to evaluate is your own hand: are you holding steady backward pressure on the line? Constant tension teaches a horse to lean against the line rather than respond to it, because the pressure is always there whether the horse is correct or not. The line should have life — a feel that appears when the horse drifts out and disappears when it returns to the correct distance. When the horse drifts out or pulls, give a sharp, brief tug on the line rather than sustained resistance, then immediately soften. The tug is a correction; the softness is the release that teaches the horse where comfort is. Bring the horse to a smaller circle if it is pulling hard — step backward and use the line to spiral the horse inward until it is working at a manageable distance, then gradually allow it out to the correct circle size again. For horses that genuinely drag the handler, the problem needs to be addressed on the ground first through basic leading and yielding work before the lunge line is reintroduced. A horse that does not respect the handler's space on a six-foot lead rope will not respect a twenty-foot lunge line. Re-establish basic leading respect and the response to light pressure on the lead — yield toward pressure rather than pull away from it — before returning to lunge work.