100 Miles, Endless Elevation
Hardrock 100 (hardrock100.com) scores 69 out of 100 on Brand Analyzer, placing it in the Developing tier among Sports & Fitness brands, Other brands, in the 21st percentile of 10255 Sports & Fitness brands.
Hardrock 100, officially the Hardrock Hundred Mile Endurance Run, is an ultramarathon founded in 1992 held in the San Juan Mountains of Southern Colorado. The race covers a 100-mile loop course with approximately 66,000 feet of elevation change at an average elevation exceeding 11,000 feet, traversing 4WD roads, dirt trails, and cross-country terrain. It is known for its extreme difficulty, remote wilderness setting, and selective lottery-based entry system, attracting experienced ultramarathon and endurance athletes seeking high-altitude trail running challenges.
| Brand Name | Hardrock 100 |
|---|---|
| Domain | hardrock100.com |
| Industry | Sports & Fitness, Other |
| Founded | 1992 |
| Headquarters | Southern Colorado, USA |
| Main Competitors | Western States 100 (64/100), UTMB (Ultra-Trail du Mont-Blanc) (80/100), Leadville Trail 100 (76/100), Badwater 135 (74/100), Wasatch Front 100 (65/100) |
Moz Domain Authority 49/100 vs category average 42 / leader 94 - a strong backlink profile, so AI systems frequently encounter mentions of the brand.
Ranked #1,356,876 on the Tranco list of most-visited sites - modest traffic makes the brand easy for AI models to overlook.
Hardrock 100 appears on Wikipedia but without a dedicated company entity, so AI models can confuse it with similarly named subjects.
The homepage meta description reads "The Official Hardrock Hundred Mile Endurance Run, or Hardrock 100, is an 100-mile ultramarathon run with 66,000 feet of elevation change at an average elevation of over 11,000 feet…" (Meta description: 54 words. No OG description (falling back to meta)) - this is the summary AI engines are most likely to quote.
Structured data on the homepage: No structured data or Open Graph tags detected. Adding Organization and FAQ schema would further help AI crawlers parse the brand's identity.
AI-crawler access: robots.txt present, no AI bot restrictions - robots.txt controls whether engines like GPTBot and ClaudeBot can read the site at all.
Detected tech stack: PHP, Apache.
Social footprint: verified profiles on Facebook, Instagram, X (Twitter), GitHub; no detected presence on LinkedIn, YouTube - consistent profiles reinforce the brand's identity across the web.
0 Reddit mentions - community discussion signals real-world reputation to AI models.
Live results from asking a general-purpose AI assistant about the brand, checked October 2026.
When asked "What is Hardrock 100?", Claude could identify the brand as of October 2026. Hardrock 100 is a legendary 100-mile ultramarathon held in the San Juan Mountains near Silverton, Colorado, known for its extreme elevation gain and loss (over 33,000 feet each) and high-altitude terrain reaching over 14,000 feet. Best known for being one of the toughest and most prestigious 100-mile trail ultramarathons in the world, with a notoriously hard-to-get-into lottery.
When asked "Best brands similar to Hardrock 100?", Claude would recommend Hardrock 100 as of October 2026. It's one of the most iconic and respected ultrarunning events globally, so it would naturally come up in any discussion of elite trail ultras.
Common questions people ask in Google, ChatGPT, Claude, Gemini, Perplexity, and other AI search engines.
Hardrock 100's main competitors in Sports & Fitness: Western States 100 (64/100), UTMB (Ultra-Trail du Mont-Blanc) (80/100), Leadville Trail 100 (76/100), Badwater 135 (74/100), Wasatch Front 100 (65/100).
Sources: Brand Analyzer scan
Hardrock 100, officially the Hardrock Hundred Mile Endurance Run, is a 100-mile ultramarathon held on a loop course in the San Juan Mountains of Southern Colorado. Founded in 1992, the race features about 66,000 feet of elevation change at an average elevation over 11,000 feet, run on 4WD roads, dirt trails, and cross-country terrain. It is widely regarded as one of the most demanding ultramarathons in the world due to its extreme altitude, rugged wilderness course, and selective lottery entry process.
Sources: Hardrock 100 official site
Hardrock 100 has limited AI-search visibility, scoring 37/100 on Brand Analyzer's AI visibility composite (visibility 35, trust 19, recommendation 63). This estimates how likely AI engines like ChatGPT, Claude, Gemini and Perplexity are to know, trust, and recommend the brand.
Sources: Hardrock 100 official site
Hardrock 100 was founded in 1992. Hardrock 100 operates in the Sports & Fitness category. It is analyzed by Brand Analyzer across seven brand dimensions and AI-search visibility.
Sources: Wikidata
Hardrock 100 offers an annual 100-mile ultramarathon race event, including a defined loop course through the San Juan Mountains, a lottery-based entry system for runner selection, and the overall race experience encompassing course markings, elevation challenges, and event logistics for ultramarathon participants.
Sources: Hardrock 100 official site
Hardrock 100 is known for being one of the most physically demanding ultramarathons in the world, featuring a grueling 100-mile loop course with roughly 66,000 feet of elevation change at an average elevation above 11,000 feet. It is also known for its remote, rugged wilderness setting in Colorado's San Juan Mountains and its highly selective lottery system for race entry.
Sources: Hardrock 100 official site
Hardrock 100 organizes and hosts an annual 100-mile ultramarathon race through the San Juan Mountains of Southern Colorado. It manages the race course, entry lottery, and event logistics for participants, providing a high-altitude, mountainous endurance running event for qualified ultramarathon runners.
Sources: Hardrock 100 official site
Hardrock 100 scores 63/100 on Brand Analyzer's AI recommendation signal, indicating it is reasonably likely to be surfaced when AI assistants like ChatGPT suggest Sports & Fitness options. Recommendation depends on crawlability, structured data, and category authority; a Wikipedia presence helps.
Sources: Hardrock 100 official site
Hardrock 100 can improve AI discoverability by strengthening structured data (Organization and FAQ schema), maintaining an accurate Wikipedia/Wikidata entity, earning authoritative citations, and keeping content crawlable for AI bots. Brand Analyzer measures these as visibility, trust, and recommendation signals.
Sources: Hardrock 100 official site
Hardrock 100 is used by experienced ultramarathon runners and endurance athletes who seek extreme high-altitude trail running challenges. Participants are typically highly trained individuals capable of completing demanding mountain courses with significant elevation change, and entry is limited through a selective lottery system.
Sources: Hardrock 100 official site
Hardrock 100 is popular among endurance athletes because it offers an extremely challenging high-altitude course with significant elevation change, set in a remote and scenic wilderness area. Its difficulty and prestige, combined with a selective lottery entry system that limits participation, make it a sought-after and iconic event for experienced ultramarathon runners seeking to test their limits.
Sources: Hardrock 100 official site
Hardrock 100 scores 37/100 for AI visibility - how well ChatGPT, Claude, Perplexity and Google AI Overviews can discover, identify and cite the brand.
Hardrock 100 has a weak AI-visibility profile at 37/100 - a proxy for how readily ChatGPT, Perplexity and Google's AI Overviews can recognise and cite it. Its strongest area is recommendation likelihood (63/100) and its weakest is trust (19/100). It benefits from a Wikidata knowledge-graph entry, a global traffic rank of #1,356,876 (Tranco) and a Moz Domain Authority of 49/100. The main gaps holding it back: no clear Wikipedia entity to anchor it in LLM training data, thin schema.org structured data and no llms.txt to steer AI to its best pages. In a live check, Claude could already identify Hardrock 100 from memory (October 2026) - a sign these signals are paying off.
The score combines seven dimensions - name quality, digital presence, visual identity, messaging clarity, trust foundation, AI discoverability, and brand authority - into a single objective benchmark.
Ranked closest to Hardrock 100: Happy Yak (69/100), Happymodel (69/100), Harrod Sport (69/100), Herrett's Stocks (69/100).
A step up - brands to learn from: YUM (71/100), Your School Games (71/100).
Category leader: Complex (97/100).
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