ITRA is your ultimate resource for trail running enthusiasts. With a comprehensive race calendar, detailed race results, and interactive race maps, you can easily plan your next adventure. Discover runners' rankings and find fellow trail runners in your area. The ITRA Performance Index allows you to track and improve your performance over time. Plus, we offer valuable insurance options for peace of mind during your races. Join the ITRA community today and explore the exhilarating world of trail running!