Bouldering is a form of rock climbing that is performed on small rock formations or artificial rock walls without the use of ropes or harnesses. While bouldering can be done without any equipment, most climbers use climbing shoes to help secure footholds, chalk to keep their hands dry and to provide a firmer grip, and bouldering mats to prevent injuries from falls. Unlike free solo climbing, which is also performed without ropes, bouldering problems are usually less than six metres (20 ft) tall. Traverses, which are a form of boulder problem, require the climber to climb horizontally from one end to another. Artificial climbing walls allow boulderers to climb indoors in areas without natural boulders. In addition, bouldering competitions take place in both indoor and outdoor settings.
Competition climbing is a form of regulated rock climbing competition held indoors on purpose-built artificial climbing walls. 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. Competition climbing is sometimes called "sport climbing", which is the name given to pre-bolted lead climbing.
USA Climbing is the national governing body of the sport of competition climbing in the United States. As a 501(c)3 non-profit, they promote Sport Climbing which comprises three competition disciplines: bouldering, lead climbing, and speed climbing, in elite, youth and collegiate formats.
Ashima Shiraishi is an American rock climber. Shiraishi started climbing at the age of six at Rat Rock in Central Park, joining her father. Only a few years later, she quickly established herself as one of the top boulderers and sport climbers in the world. Her numerous accomplishments include first-place finishes in international competitions, and multiple first female and youngest ascents. Shiraishi is featured in several short documentary-style films, and is the subject of the documentary short "Return to the Red" (2012).
Janja Garnbret is a Slovenian professional rock climber who specializes in sport climbing and competition climbing. She has won multiple competition lead climbing and competition bouldering events, two Olympic gold medals, and is widely regarded as the greatest competition climber of all time. In 2021, Garnbret became the first-ever female Olympic gold medalist in climbing, and successfully defended her title in 2024. With two gold medals, she is the most successful Slovenian athlete at the Summer Olympics. She is also the world's first-ever female climber to onsight an 8c (5.14b) graded sport climbing route.
Akiyo Noguchi is a Japanese professional rock climber who specializes in competition bouldering as well as outdoor bouldering and sport climbing.
Jan Hojer is a German professional rock climber specializing in sport climbing, bouldering, and competition climbing. He is known for winning one World Cup and two European Championships in competition bouldering. In May 2010, he climbed Action Directe, one of the most difficult sport climbing routes in the world. From 2013 to 2015, he sent several 8C (V15) boulder problems.
Jessica Pilz is an Austrian professional rock climber who specializes in competition climbing. She won the bronze medal in the combined bouldering and lead climbing event at the 2024 Summer Olympics.
Tomoa Narasaki is a Japanese professional rock climber who specializes in bouldering and competition bouldering.
Miho Nonaka is a Japanese competition climber who specializes in competition bouldering. She is an Olympic silver medalist in sport climbing.
Robyn Erbesfield-Raboutou, is an American rock climber and rock climbing coach. In competition lead climbing, she is a 4-time World Cup champion, and won the biennial World Championships in 1995. She is the third-ever woman in history to redpoint a 5.14a (8b+) graded sport climbing route. She has coached several competition climbers, including Megan Mascarenas, Margo Hayes and her daughter, Brooke Raboutou.
Ai Mori is a Japanese professional rock climber who specializes in competition lead climbing and competition bouldering.
Oriane Bertone is a French rock climber, who specializes in competition climbing, but is also noted for her sport climbing and her bouldering.
Seo Chae-hyun, also known as Chaehyun Seo, is a South Korean professional rock climber who specializes in competition climbing. She won the overall 2019 World Cup title in competition lead climbing in her senior debut season. In 2021 she won the IFSC World Championship in lead climbing. Seo is a two-time Olympian, having represented South Korea at the 2020 and 2024 Summer Olympics.
Laura Rogora is an Italian rock climber who specializes in sport climbing and in competition climbing. In 2021, she became the third-ever female climber in history to redpoint a 9b (5.15b)-graded sport climbing route, with her ascent of Erebor in Italy.
Natalia Grossman is an American professional rock climber who specializes in competition climbing. She represents the United States at IFSC Climbing World Cup in competition bouldering and competition lead climbing. She has had 22 podium finishes at World Cup events, including 11 gold medals, and is the only climber to have won four consecutive overall titles in bouldering.
Sean Bailey is an American professional rock climber, who specializes in competition climbing, sport climbing, and bouldering. He has represented the United States in the IFSC Climbing World Cup in lead climbing, and has two podium finishes in bouldering at individual legs of the World Cup, including a win at the Salt Lake City leg of the 2021 World Cup.1 and three in lead climbing, including two gold medals, at the Villars leg, and Chamonix leg, in July 2021.
Colin Duffy is an American professional rock climber who specializes in competition climbing. At age 17, he became the youngest climber to qualify to compete at the 2020 Summer Olympic Games in Tokyo.
Toby Roberts is a British rock climber who specialises in competition climbing and in outdoor sport climbing. He is the youngest British climber to redpoint a 9a (5.14d)-graded sport climbing route. He is the 2024 Olympic champion in sport climbing.
Simon Lorenzi is a Belgian professional rock climber specializing in sport climbing, bouldering and competition climbing. Lorenzi is one of the very few climbers to have repeated a V17 (9A) bouldering route, and the third climber to solve Burden of Dreams, the first-ever V17 (9A) graded boulder route. Lorenzi also made the first ascent of Soudain Seul, a V16/V17 boulder.
