Build Profile

Turn Watch Data into Training Insights

The Athlete Profile Builder helps runners turn GPS watch files into a clear training summary. It reviews weekly mileage, training consistency, long runs, workout intensity, heart-rate trends, race predictions, training paces, and possible performance limiters.

This tool is designed to help athletes and coaches understand training patterns without overanalyzing every run. The goal is to support healthy development, gradual mileage progression, smart recovery, and better communication between athletes, parents, and coaches. The athlete profile is processed locally in the browser. The website does not store or save athlete watch data. Athletes upload their own files, review the results, download the PDF report, and share the PDF with their coach.

What Files Can I Upload?

The Athlete Profile Builder works with common activity files and archives, including:

• FIT, GPX, and TCX files

• Final Surge XLSX exports

• Strava, Garmin, COROS, Zepp ZIP archives

• URLs from Strava, Garmin, COROS

For best results, upload a bulk archive or several months of activity files. More training history gives a better picture of mileage trends, long-run development, heart-rate patterns, workout intensity, and race preparation.

Step 1: Download Your Watch Data

Athletes can record training with a GPS watch such as Garmin, COROS, Polar, Apple Watch, or Suunto. Watch data helps coaches and athletes see the full picture of training rather than only individual workouts.

Depending on the watch platform, athletes may be able to sync data directly (Garmin, Polar) or upload activity files such as FIT files (COROS, Apple Watch, Suunto). Data sync with Garmin or Polar only needs to be performed once and new activities will automatically add to the athlete profile as they are completed. Data archive upload needs to be performed occasionally (~2 weeks) to receive the latest data. A batch activity archive can also be obtained:

• COROS with COROS TrainingHub

• Garmin with Download Garmin Data

• Strava with Download My Account

• Zepp (Amazfit) with Download Zepp Life

Below are instructions to download COROS activities from TrainingHub. Login to COROS TrainingHub.

Step 2: Export FIT File Data

Select Activity List and then Export Data. Choose the FIT file archive and enter an email to receive the data. It typically takes 1-2 hours (they say up to 5 days) to receive the archive link and this can be requested once per week.

Step 3: Build Athlete Profile

The Athlete Profile Builder turns watch data into a clear, coach-ready snapshot of training history, current fitness, heart-rate zones, race predictions, workout targets, mileage trends, and possible performance limiters. Athletes can upload FIT, GPX, TCX, Final Surge XLSX, or ZIP files to review weekly mileage, training load, aerobic efficiency, pacing patterns, and race-day projections.

The summary also creates an AI-ready training export that can be copied into the AI Training Chat, where athletes and coaches can ask targeted questions about training progress, recovery, race preparation, pacing, and next-step workout adjustments. The AI chat turns complex watch data into practical guidance for smarter, more individualized training decisions.

Learn from Watch Data

• Review the dashboard.

• Click Download PDF report.

• Save the PDF.

• Share the PDF with your coach and parent.

The PDF gives the coach a snapshot of training history, current fitness, mileage trends, workout intensity, heart-rate patterns, race predictions, and suggested training paces.

The report helps coaches answer questions such as:

• Is mileage building gradually?

• Are easy runs actually easy?

• Is the long run progressing safely?

• Are workouts too hard, too frequent, or well balanced?

• Is heart rate improving at similar paces?

• Is the athlete ready for a race goal?

• What should be adjusted next?

Watch data is only one piece of the training picture. Coaches should also consider sleep, nutrition, stress, soreness, growth, race schedule, and how the athlete feels.

Best Practices

• Use the most complete data archive available.

• Upload at least 8–12 weeks of data when possible.

• Include easy runs, workouts, races, and long runs.

• Use FIT files when available.

• Do not edit or delete difficult workouts from the profile.

• Download the PDF before closing the page.

• Share the PDF with a coach, not the raw watch archive, unless requested.

Reminder

The Athlete Profile Builder does not replace coaching judgment. It gives athletes and coaches a better starting point for conversation. The best training decisions come from combining watch data, coach experience, athlete feedback, healthy progression, and consistent recovery.