Leg drag pass in BJJ: drag the opponent’s legs across your own hip and control behind them. Rulebook, the knee-reaping limit and knee safety.
The leg drag pass is a pass in which you drag your partner's legs across your own hip and control behind them. That is how the DOMISPORTS skill catalogue describes it. How exactly you grip the legs, how you set your hip and what you do with arms and weight behind the legs is shown by your coach. It differs by school, and this text deliberately explains only frame, rules and safety.
The honest answer: the leg drag is a pass for intermediate students because you control your partner's legs and therefore hold his joints in your hands. The catalogue names the toreando as a prerequisite. Whoever knows it knows how to bring legs to the side. How long you need for the first safe leg drag cannot be stated. There is no study on it.
The goal is defined in the rulebook. Under Art. 4.2 of the IBJJF rulebook (version 6.1, 2024) a guard pass scores 3 points when you surmount the opponent's legs and hold side control or north-south for 3 seconds [1]. That also applies to the leg drag: leg control is a way, but scoring comes only when you arrive in one of the two positions and hold it.
A second rule sets you a limit for leg control. The rulebook defines knee reaping as a technique in which an athlete places his thigh behind the opponent's leg, passes his calf over the opponent's body above the knee, places his foot beyond the vertical midline and applies pressure on the knee from outside to inside while the foot of the leg at risk stays trapped between hip and armpit [1]. In the table of illegal techniques knee reaping is listed for most classes, but not for brown and black belts in adult no-gi [1]. Which rules apply in your training is decided by your coach.
The order follows the description in the catalogue: grip the legs, pull across the hip, control behind, secure the pass. Grips and footwork are shown by your coach.
You bring your partner's legs to the side as in the toreando. Milestone: you reach the starting situation in five of ten attempts against light resistance.
You grip the legs as your coach shows, without pressure on joints. Milestone: five repetitions that your coach confirms as joint-friendly.
You pull the legs across your hip. That is the core of the move according to the catalogue. Milestone: five slow repetitions against a passive partner in which your partner can stop at any time.
Behind the legs you hold control. Milestone: you hold control for 10 seconds against light resistance.
You arrive in side control or north-south and hold for 3 seconds [1]. Milestone: you hold 3 seconds before releasing.
In the leg drag you hold your partner's legs in your hands. The knee is the most affected region in BJJ: 27.1% of injuries in a survey of 1,140 athletes, with meniscus, anterior cruciate ligament and medial collateral ligament in front. Cruciate ligament tears were especially associated with long times to return to sport [2]. In a Dutch survey knees were at 25% and shoulders at 13%, and 79% of training injuries occurred in sparring [3]. There are no data on the leg drag itself. As an inference: never guide the legs against a joint, pull slowly and release at once when your partner taps or raises a hand. The rulebook prohibits knee reaping in most classes [1]. Practise the pass under supervision; it does not replace supervised training.
Agree a stop signal with your partner before every round and keep to it even when you are almost through. It is also worth swapping roles: whoever has experienced the leg drag himself feels how quickly leg control becomes uncomfortable. That is experiential knowledge, not a study. After the session note at which point your partner wanted to stop. That is the point at which you have to correct your pace.
A pass in which you drag your partner's legs across your hip to the side and control behind them. That is how the DOMISPORTS skill catalogue describes it.
The pass scores 3 points when you hold side control or north-south for 3 seconds after surmounting the legs [1].
A technique defined in the rulebook with pressure from outside to inside on the knee while the foot is trapped. It is prohibited for most classes [1].
The catalogue names it as a prerequisite. It shows you how to guide legs to the side.
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