Lead belaying is the skill that safety hangs on: paying out slack, a soft dynamic catch, the braking-hand rule and the risky zone of the first bolts.
## Introduction Straight talk first: belaying a leader is the real core skill of sport climbing — not the climbing itself. A good belayer feeds slack smoothly, catches the fall softly (the "soft catch") and still never takes the braking hand off the rope.
Because this is exactly where serious accidents happen: in the gym, lead ground falls are almost always misuse of the belay device — braking hand briefly gone, too much slack at the wrong moment, or the braking-hand principle broken while switching grip.
The numbers are clear: the German Alpine Club lists lead climbing as one of the main drivers of serious gym incidents, with ground falls and even hand burns on the belayer. And although acute climbing injuries in the gym are rare overall, the few serious ones are almost all operation and belaying errors.
For you that means: you don't learn belaying on the side — it's the part you have to master over-correctly.
## What you need - A belay device: an assisted-braking device (e.g. a Grigri) or a tube — plus a screwgate belay carabiner. - A dynamic single rope in a diameter that suits the device (usually 9.4–10 mm). - A lead-belay certificate and, if possible, an experienced climber watching you at first. - Attention, not your phone: belaying is a full-time job while your partner climbs.
## Step by step ### 1. Stance and position Stand close to the wall, slightly offset to the side of the first bolt — not three metres away. Too far means more swing and more ground-fall risk in the first metres. One foot slightly forward, body loose and ready to be pulled up.
### 2. Feed slack smoothly Always give enough rope that your partner can clip without a tug — but never so much that big loops of slack hang. Give a little for the clip, then immediately take it back to normal. That give-and-take is the real art.
### 3. Braking-hand principle — always The braking hand never leaves the braking rope, not even for a tenth of a second while switching grip. Use the technique from your course. The same applies with an assisted-braking device — it supports the braking hand, it doesn't replace it.
### 4. Catch softly (soft catch) For a fall high above the ground with good protection, catch dynamically: knees slightly bent, and the moment the rope goes taut, let yourself be pulled up a little or hop off the ground slightly. That lengthens the arrest and makes the impact gentle — for the climber and your gear.
### 5. Lower under control At the anchor, keep the braking hand firm on the braking rope and lower slowly and evenly. No jerking, not too fast — lowering too fast is one of the causes of hand burns and loss of control.
## Common mistakes - Too much slack near the ground: in the first three bolts, slack = ground fall. Fix: belay tighter low down, allow slack only higher up. - Standing too far from the wall: increases swing and fall distance. Fix: close to the wall, offset to the first bolt. - Static "pulling into the wall": a hard catch slams the climber into the wall. Fix: dynamic, let the knees give. - Briefly releasing the braking hand (e.g. to adjust glasses): the classic behind serious accidents. Fix: never, under any circumstances. - Treating an assisted device as autopilot: even a Grigri can run through with wrong handling.
## Safety notes The most dangerous moment is the zone of the first three or four bolts — here a fall with too much slack can reach the ground. Belay tight low down, stand close to the wall and be ready to hop.
The soft catch is great, but with one exception: if your climber could hit an edge, a ledge or the ground, you actively shorten the fall instead of making it soft and long. And the iron rule above all: partner check before every start and braking hand always on the rope. The DAV accident analyses show clearly that almost all serious lead incidents originate right here.
## Pro tip Practise the soft catch deliberately as a dry run: your partner hangs from a high bolt just above the ground, calls "falling" and lets go, and you catch dynamically. Ten reps and your timing is dialled.
The reflex to move up a little at the right moment instead of blocking can only be grooved this way — in the real moment you have no time to think.
## FAQ ### How much slack do I give on lead? As little as possible, as much as necessary. Near the ground (first three bolts) you belay fairly tight so a fall doesn't reach the deck. Higher up a small, loose loop may hang so your partner can clip without a tug and move freely. Big hanging loops are always too much.
### How do I catch a fall softly (soft catch)? Stay loose with bent knees, keep the braking hand firm and let yourself be pulled up a little the moment the rope goes taut — or hop off the ground slightly. That lengthens the arrest and dampens the impact. Important: only when there's enough air below the climber and no edge in the way.
### Grigri or tube for lead belaying? For most beginners an assisted-braking device like the Grigri is the safer choice, because with correct handling it adds braking power. But it never replaces the braking hand. A tube demands more feel and is easier to give dynamically. What matters isn't the device but that you handle it safely.
### Why is the zone of the first bolts so critical? Because you're still close to the ground. If your partner falls in the first metres and you have too much slack in the system, the fall distance reaches the floor — exactly one of the most common causes of serious lead accidents. So belay tight low down and stand close to the wall.
Sport Climbing: Clipping Quickdraws Right