Colin Duffy (climber)

Colin Duffy (born December 10, 2003) 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.

Competition climbing
Duffy started climbing at age five before joining Team ABC in Boulder, Colorado at age eight, where he trained under Robyn Erbesfield-Raboutou and was teammates with future Olympic teammate Brooke Raboutou.

As a youth competition climber, Duffy won the IFSC Climbing World Youth Championships twice in 2017 and 2018 and finished second in 2019. Additionally, he was a 10-time USAC Youth National Champion.

Duffy won his first IFSC Climbing World Cup medal at the 2021 IFSC Climbing World Cup by finishing third in lead in the Villars, Switzerland leg. At the Tokyo Olympics, he advanced to the final round of the sport climbing competition and finished in seventh place.

Duffy won his first IFSC gold medal at the 2022 IFSC Climbing World Cup, finishing first in the competition bouldering event at the Innsbruck leg. Two days later, Duffy won his second gold by finishing first in the men's competition lead climbing event. He is the first male athlete to win both bouldering and lead climbing in the same IFSC World Cup event.

Rock climbing
In 2019, aged 15, Duffy redpointed two graded sport climbing routes at the Red River Gorge, Pure Imagination and Southern Smoke, and onsighting the  graded sport route Omaha Beach, in a single day; two days later he redpointed the 5.14a (8b+) route God's Own Stone. In November 2021, he climbed his first graded sport route, Life of Villains. Duffy has also solved a  grade bouldering problem.

Duffy is sponsored by Black Diamond, Evolv, and Friction Labs.