
The California International Marathon Course Guide
Far from Folsom prison, that's where I want to stay.
Course guides built from high-quality data: certified GPX, historic weather, local landmarks, and official notes. Get a precise preview so race day feels familiar.


Far from Folsom prison, that's where I want to stay.

Tokyo, Tokyo. Turn off the lights and let it go.

I'm going down to Mesa Town, I'm gonna see what *** **** is going down.

When the credits roll, and the music ends, we’ll make our way for Black Canyon.

South Beach, bringin' the heat.

The good life, it feel like Houston.

One day, I'll know how far I'll go.

Philadelphia freedom, shine on me.
It is becoming increasingly clear that AI and wearable technology will play a central role in the future of outdoor experiences. From optimizing performance and improving safety to simply making time outside more engaging, AI can become a trusted companion for athletes and adventurers—if we build the right foundation.
For this vision to take shape, two things must happen:
Major players like Meta, Google, and Apple are already investing billions in AI-enabled wearables. Yet the missing link is data: where will the information come from that enables an AI companion to do more than provide city directions? Guiding someone across downtown San Francisco is a very different challenge than supporting them through the San Francisco Marathon or a rugged 50M trail race.
No one has yet stepped forward to deliver the data infrastructure needed for AI in endurance sports and outdoor adventures. This gap represents both a challenge and a major opportunity: defining how AI understands performance, terrain, weather, and safety relative to real-world, curated courses.
This is where RunReady.AI comes in. For the past two years, we have been researching which data types are most valuable for endurance athletes and events, and creating formats and methodologies that can successfully ground AI systems.
We believe this is a pivotal opportunity that many have not yet recognized. By defining and supplying the data layer, RunReady.AI is building the foundation for the next generation of outdoor adventure technology—where AI is not just along for the ride, but an active and valuable part of the journey.