800km self-supported through Spanish deserts and 3,400m alpine passes. Where ultra-endurance meets extreme heat.
530 miles of high-altitude suffering across the spine of the Rockies - 75% of starters don't finish, and that's the poin
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Colorado Trail Race scores 1 points higher overall (90 vs 89), but the right choice depends on what you value most.
"The world's hardest gravel race—800km through Spanish deserts and alpine passes, completely self-supported."
"The Colorado Trail doesn't care about your FTP when you're pushing your bike through talus fields at 13,000 feet."
Badlands rates as the more demanding race based on our composite difficulty score (averaging length, technicality, elevation, climate, and altitude ratings). If you're looking for the bigger challenge, go with Badlands. If you want a more accessible race, Colorado Trail Race is the better pick.
Colorado Trail Race scores 90/100 compared to 89/100 in our 15-dimension Gravel God Rating. The overall score reflects course profile, prestige, race quality, community, and value.
Badlands is generally more accessible for first-time gravel racers, factoring in distance, technicality, and logistical ease. Check each race's full profile for distance options and beginner-specific advice.
Both races take place in August, which means you may need to choose between them. Check the official race websites for exact 2026 dates.
Badlands is held in Granada, Andalusia, Spain. Colorado Trail Race is held in Durango to Denver, Colorado. Consider travel logistics, especially if you're flying in — check our full race profiles for airport and lodging details.
Get a personalized training plan for either race — tailored to your fitness, schedule, and goals.
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