Bouldering is a form of free 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.
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 accolades 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).
Jakob Schubert is an Austrian professional rock climber, specializing in competition climbing, sport climbing, and bouldering. He was four times World Champion and three times World Cup winner in lead climbing. In August 2021, he won bronze at the 2020 Summer Olympics in Tokyo. As of the end of 2022, Schubert had won the most men's IFSC gold medals of any male competition climber in history. In addition to competition climbing, Schubert is the only climber in the world to have redpointed a 9c (5.15d) graded sport climbing route and climbed a 9A (V17) graded bouldering problem.
Akiyo Noguchi is a Japanese professional rock climber who specializes in competition bouldering as well as outdoor bouldering and sport climbing.
Christian Core is an Italian professional rock climber who specialises in bouldering and competition bouldering. He is known for being the first-ever person in the world to climb an 8C+ (V16) boulder, Gioia, in 2008. As a competition climber, Core won the Bouldering World Cup twice in 1999 and 2002, and also won the Bouldering World Championship in 2003.
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.
Tomoa Narasaki is a Japanese professional rock climber who specializes in bouldering and competition bouldering.
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 climbing and the disciplines of competition lead climbing and competition bouldering. At the 2019 IFSC Climbing World Championships, she became the youngest Japanese athlete to finish in a podium place in the competition, third in lead. She has won Japan Cup titles in both bouldering and lead disciplines and has multiple IFSC Climbing World Cup podium finishes, including three gold medals in World Cup events in the 2022 season. At the 2023 IFSC Climbing World Championships, Mori won the gold medal in lead, becoming the first Japanese athlete to win a World Championships lead title.
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 August 2021 she represented South Korea at the 2020 Summer Olympics, where she was a finalist, and later that year won the IFSC World Championships in lead.
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 won gold and silver at the 2021 IFSC Climbing World Championships, and has 19 podium finishes at World Cup events, including nine golds. In October 2023, Grossman qualified for the 2024 Olympic games in Paris by winning the boulder & lead combined competition at the 2023 Pan American Games.
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.
William (Will) Bosi is a Scottish professional rock climber specializing in sport climbing, bouldering and competition climbing. Bosi is only the second British sport climber in history to redpoint a 9b (5.15b) graded sport climbing route, and by 2023, was one of only a small group of climbers in the world to have completed a V17 (9A) boulder.
Hannah Meul is a German rock climber who specialises in competition bouldering and bouldering. She won the silver medal in bouldering at the 2022 IFSC Climbing European Championships and has placed second three times on the IFSC Climbing World Cup circuit.
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.
