Trailia - Trail & Ultra Coach

Your AI trail running coach. Personalized plans built from your Strava, Garmin, and Polar data, race predictions, AI workout reviews, and a coach in your pocket.

Trailia is a trail running coaching platform that builds and manages your training plan using AI, your actual activity history, and proven sports science principles. It's not a generic plan generator. It analyzes your Strava and Garmin data, your race goals, your weekly schedule, and your terrain access to create something that actually fits your life.

How your plan is built Every plan is structured around periodization: Base, Build, and Taper phases sized to your race date and experience level. The AI applies progressive overload and recovery optimization across running workouts (easy, tempo, intervals, hill repeats, long runs) and optional strength sessions. When you complete a workout and log how it felt, the plan adapts going forward.

Your AI coach, always available The AI Coach Chat is available on every page. Ask it anything: why a workout is scheduled this way, how to handle a hard week, what to eat before your race. It knows your plan, your history, and your goals.

Race preparation Set a race goal with distance, elevation, terrain, and target date. Upload your GPX course file and Trailia generates a three-tier finish time prediction (fastest, most likely, slowest) with a confidence rating, key training gaps, focus areas for the weeks ahead, and a race-day strategy. Nutrition and fueling plans are generated for race day and integrated into your long training runs as practice sessions.

Daily readiness Your daily readiness score pulls from training load, HRV data, and recovery metrics to tell you how prepared your body is before you head out. Contributing factors are shown so you understand what's driving the number.

Analytics that mean something View your distance, elevation, pace, heart rate zones, cadence, and training load trends over 7, 30, or 90 days, or a custom range. The ACWR chart helps you manage injury risk. Week-over-Week and Month-over-Month comparisons show you exactly how your training is trending.

Activity tracking Connect Strava, Garmin Connect, or Polar Flow. Import GPX, FIT, or CSV files manually. Activities are matched to your planned workouts automatically, and the AI reviews each completed session with specific feedback on pacing, effort distribution, and what to adjust next time.

More tools for serious runners Edit your training plan with a plain text message: "Move my long run to Thursday, I have a race Sunday." Find trails for your workouts via Komoot, matched to your distance and elevation targets. Track injuries with body location, pain level, and symptoms. Get an AI-generated recovery plan with timeline, training modifications, and check-in tracking. Sync your training plan to Google Calendar automatically. Share your plan with a public link. Manage your shoe rotation with distance tracking and replacement alerts. Access a library of 50+ strength exercises with video demonstrations.

Built for trail runners Trailia is not a road running app with trail filters added. Everything from plan structure to elevation modeling to race prediction accounts for the specific demands of trail running: vertical gain, technical terrain, time-on-feet over pace.

Free plan includes the full training plan, calendar, basic analytics, device sync, and the strength library. Pro unlocks AI Coach Chat, advanced analytics, race predictions, HRV readiness, workout reviews, nutrition planning, injury recovery, natural language editing, and more.

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