Sport Climbing

Barn-Door: Definition, Why It Happens, and How to Stop It

Barn-dooring (or barn door) is when a climber's body swings uncontrollably away from the rock, pivoting on a hand and foot like a swinging barn door, because their weight is off-balance relative to their points of contact. It typically happens when a climber's hand and foot on the same side are weighted while the other side has nothing to hold the body in. It's countered with body-positioning techniques like flagging, drop-knees, and finding opposing pressure.

Pumped: Definition, Why It Happens, and How to Manage It

Being 'pumped' is the burning forearm fatigue climbers experience when their forearm muscles become engorged with blood and depleted of oxygen during sustained gripping, causing a rapid loss of grip strength and a swollen, heavy feeling. A near-universal climbing sensation, getting pumped is what ends many attempts on sustained routes. It's managed through efficient technique, resting and shaking out, relaxing the grip, and building endurance over time.

Lock-Off: Definition, How It Works, and How to Build It

A lock-off is a climbing technique in which the climber holds their body static in a bent-arm (pulled-up) position on one arm, locking it off so they can free the other hand to reach for the next hold. It demands significant pulling strength and core tension to hold the position without moving, and is essential for making controlled, static reaches on steep or hold-sparse terrain. Lock-off strength is a key target of climbing training.

Quad Anchor: The Versatile Pre-Rigged Anchor Explained

The quad (quad anchor) is a popular self-equalizing climbing anchor built by doubling a sling or cord between two points of protection and tying two limiter knots, creating four strands at the master point that share the load and offer multiple, independent clip-in points. Ideal for two-bolt belays, the quad combines good equalization across a range of directions with limited extension and redundancy, making it a fast, versatile, and widely taught anchor.

Sliding X: The Self-Equalizing Anchor Explained

The sliding X is a self-equalizing anchor rigging that connects two points of protection with a sling crossed (twisted) so the master point can slide to keep the load shared between the two pieces even as the direction of pull changes. Its advantage is dynamic equalization; its key drawback is that if one piece fails, the master point slides and shock-loads the other (extension), so it's used with limiting knots and understood as a trade-off in anchor building.

Master Point: The Central Anchor Point Explained

A master point (or power point) is the single, central, strong attachment point of a climbing anchor, where the individual pieces of protection are brought together and equalized, and where the climber clips in and the belay is set up. Concentrating the anchor into one redundant, equalized master point makes it simple and safe to attach to, and is a fundamental feature of well-built anchors. It's typically formed with a sling, cordelette, or the rope.

Ground Fall: Definition, Causes, and How to Prevent One

A ground fall (or 'decking') is when a climber falls all the way to the ground rather than being caught by the rope or a crash pad — one of the most serious and potentially catastrophic climbing accidents. Ground falls happen when there isn't enough protection or rope to stop the fall in time, especially low on a route, or from belay errors, gear failure, or excessive slack. They're prevented through good protection, attentive belaying, and managing the risk low on climbs.

Runout: Definition, the Risk, and How Climbers Manage It

A runout is a section of a climb where there is a long distance between pieces of protection, so a climber who falls will fall a long way before the rope catches them. A 'runout' route or move is one where the protection is sparse or far apart, making a fall longer and more consequential. Runout climbing demands confidence, control, and a clear assessment of the consequences, since the safety margin is reduced even if the climbing isn't physically hard.

Z-Clip: Definition, Why It’s Dangerous, and How to Avoid It

A z-clip is a lead-climbing clipping error in which the climber accidentally pulls up rope from below their previous (lower) quickdraw and clips it into the next (higher) draw, creating a Z-shaped path in the rope. This dramatically increases rope drag, effectively shortens the rope between clips, and can pull the climber off balance, so it must be recognized and corrected immediately.

Soft Catch: Definition, How to Give One, and Why It Matters

A soft catch is a belaying technique in which the belayer adds a small amount of dynamic give to a leader's fall — typically by allowing a little slack to run, hopping slightly, or stepping toward the wall — so that the fall is arrested more gradually and gently rather than with an abrupt jolt. A soft catch reduces the peak force on the climber, lessens the chance of slamming into the wall, and is a hallmark of an attentive, skilled lead belayer.