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Century Estimated date

Copper Triangle

August 7, 2027 · Copper Mountain, CO, US · ~78 mi

Copper Triangle is a century-distance ride in Copper Mountain, CO, US, scheduled for August 7, 2027, covering roughly 78 miles. Loop over Fremont, Tennessee, and Vail passes. Traditionally the first Saturday in August; confirmed 2026 date was Aug 1. 2027 estimate follows the same rule.

Official event site ↗

About riding in Colorado

Colorado's roads climb from the Front Range plains to high mountain passes well above 10,000 feet. Altitude slows most riders noticeably, and summer afternoon thunderstorms are common in the mountains. The main riding season runs from late spring to early fall.

Estimated finish times

The route is about 78 miles. Here is the moving time at a steady average speed. It is a flat-ground baseline: climbing, wind, stops at aid stations and group riding all move the real number, so treat it as a starting range.

Average speedMoving time
10 mph7h 48m
12 mph6h 30m
14 mph5h 34m
16 mph4h 52m
18 mph4h 20m

Most recreational riders average 12–16 mph on rolling terrain in a group, and less on hilly routes.

Plan your ride

Paste the event's RideWithGPS route into the planner (many organizers publish one) to see your projected finish time, the headwind or tailwind you'll face, the temperature range, and how much to eat and drink. The ride date is pre-filled.

Open the Ride Planner · Gran fondo vs. sportive vs. century

Other events nearby

Listing sourced from web_research; last verified 2026-09-14. Dates and details can change, so confirm with the organizer before you register or travel.