Competition climbing is a form of regulated rock-climbing competition held indoors on purpose-built artificial climbing walls (earlier versions were held on external natural rock surfaces). The three competition climbing disciplines are lead climbing, bouldering, and speed climbing. The result of multiple disciplines can be used in a "combined" format to determine an all-round winner (or the "combined" winner). Competition climbing is sometimes called "sport climbing", which is the name given to pre-bolted lead climbing.
In competition lead climbing, competitors start at the bottom of a pre-bolted sport climbing route and lead-climb to touch or secure the highest climbing hold possible within a set time limit on a single attempt, making sure to clip the rope into pre-placed quickdraws while ascending. In competition bouldering, competitors climb short bouldering problems without a rope, with an emphasis on the number of problems completed, and the attempts necessary to do so. In competition speed climbing, competitors race-off in pairs on a standardised 'speed climbing wall' using a top rope on an auto belay, in the shortest time.