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Colin Duffy

b. 2003

Sport climber from the United States

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About Colin Duffy

Born 2003. Colin Duffy is an American 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.

Climbing career

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 2020 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.

Sport 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, Bookkeeping.

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

IFSC World Cup Rankings

Personal Life Duffy has connections to Ireland. His great-grandfather, Michael, left the village of Aghamore, County Mayo in 1918 aged 19 and joined the US Navy before settling in New York.

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Important facts

Birth century
Occupation
Climber
Nationality

People in Colin Duffy's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Colin Duffy's

Frequently asked questions

Who is Colin Duffy?

Sport climber from the United States

When was Colin Duffy born?

Colin Duffy was born on 10 December 2003 in Broomfield.

What is Colin Duffy's occupation?

Colin Duffy is a climber.

What nationality is Colin Duffy?

Colin Duffy is American.

Sources & further reading

· Wikipedia: Colin Duffy

· Wikidata: Q87192979

· DBpedia: Colin Duffy (climber)

Cite this page

APA: Biography.guide. (2026). Colin Duffy. https://biography.guide/colin-duffy/

MLA: "Colin Duffy." Biography.guide, https://biography.guide/colin-duffy/.

Chicago: "Colin Duffy." Biography.guide. https://biography.guide/colin-duffy/.

Data last updated: 2026-09-20 · Spot an error? Report a correction.

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