About Kai
Kai Lightner is a professional rock climber whose climbing journey began at the age of 6. At 14, Kai became Lead Youth World Champion, becoming the first American in 25 years to win a lead world championship title. By 15, he had won the Open National Championships in his first year of eligibility. To date, he has won 12 national titles, 5 Pan-American titles, and 5 Youth World Championship medals. Kai’s impressive resume extends to outdoor climbing as well; at 15, he climbed his first 5.14d route and in 2024 accomplished a 5.15 first ascent with Death of Villains (5.15a/9a+).
In addition to climbing, Kai is a freelance writer, public speaker, and has been featured in numerous documentaries. He also enjoys working with organizations focused on minority outreach in outdoor spaces. In 2020, Kai founded the nonprofit organization, Climbing for Change, which aims to connect underserved communities with individuals and organizations that seek to increase minority participation in rock climbing and the outdoor adventure industry.



G1 Climbing + Fitness
8845 West 116th Circle
Broomfield, Colorado, 80021

Opening Hours
Mondays-Fridays: 6am-10pm
Saturdays & Sundays: 8am-8pm
Holiday Hours
Closed at 4pm: Christmas Eve and New Years Eve
Closed: New Years Day, Memorial Day, July 4th, Labor Day, Thanksgiving Day, and Christmas Day
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We love climbing. More than that, we love sharing our love for climbing through stories, shared experiences, and mutual stoke. Interested in joining our team? Click here to apply now!