Long distance running analytics and training management for marathon athletes.

Marathon and ultra training cycles span months. Understanding how your weekly load evolves — and where you're spending your intensity — is what separates sustainable progress from burnout. Periodization means something different in every phase: build the base, add quality, taper, race.

• Track weekly and monthly running volume across an entire training cycle
• Review zone distributions to confirm easy days stay easy
• Plan the full cycle with the weekly planner and annual overview
• Log race simulations and benchmark sessions to track fitness development
• Work with a coach who can review load and adjust the plan in real time

• Weekly distance and duration — monitor volume ramp-up and taper patterns
• Heart rate zone distribution — confirm the majority of volume stays aerobic and easy
• Average heart rate at target pace — one of the clearest signals of improving fitness
• Performance test results — time trials logged over time reveal long-term fitness trends

Every run syncs from Strava into Segra within seconds with full heart rate, pace, and elevation data. Manual entry is available for treadmill sessions and runs without GPS.