Conquer Colorado’s Peaks in a Single-Day Cycling Epic

The 2025 Colorado Park 2 Park Challenge is a formidable Gran Fondo that takes riders from Denver’s City Park to the Winter Park Resort in a single day. Tackling three major mountain passes and accumulating over 11,000 feet of vertical gain, cyclists will test their endurance and climbing prowess amidst Colorado's breath-taking scenery. While not a traditional race, riders are timed on major climbs and can earn coveted trophies based on their ascent time to Berthoud Pass. The event also supports World Bicycle Relief, giving participants a unique opportunity to pedal for a purpose while conquering Colorado’s rugged terrain.

The route starts in the heart of Denver, weaving through the Front Range up several iconic mountain passes before culminating at Winter Park Resort. Riders will compete on paved roads featuring three demanding Category 1 climbs, including the formidable ascent to Berthoud Pass.

• Timed ascent to Berthoud Pass with gold, silver, or bronze trophies
• Supports World Bicycle Relief through event fundraising
• Spectacular views of Colorado’s Front Range and Rocky Mountains
• Single-day Gran Fondo format with mass participation