Sleipnir Analytics

Sleipnir Analytics is a limited free beta software service for endurance athletes that consolidates activity data from sports watches or imported files into a single analysis. It analyzes running, cycling, skiing, hiking, and swimming sessions, tracking fitness across seasons and mapping the terrain covered. The service currently operates in a limited free beta with certain advanced features planned for a future premium offering.

The platform automatically detects and collects cycling climbs, joining them to a user's collection for free. It also provides detailed swim set breakdowns including SWOLF and stroke splits, and maps the terrain covered by the athlete. These features help users understand their training and progress season after season.

Sleipnir Analytics integrates with Coros, Suunto, and Wahoo sports watches to synchronize activity data. Users can also import activity files directly if they do not have a compatible watch. The system supports multiple languages, including an English version alongside the primary French interface.

The service offers adaptive race planning for running targets, verifying feasibility and building plans based on actual form. It adjusts these plans weekly according to the athlete's real condition, explaining each piece of advice rather than using a black box approach. This feature is part of the running analysis module designed for endurance goals.

For cyclists, the platform analyzes power-meter data including FTP, normalized power, and training load when a capteur de puissance is used. It also detects and adds every climbed col to a personal collection, allowing users to track their ascensions over time. The col collection remains free even as power analysis moves to premium.

The platform tracks form and recovery by cross-referencing training load, injury risk, sleep, and recovery in a daily form ring. It updates this ring after every session and provides a single number summary of morning readiness. Users can explore their terrain and see segments named automatically through heatmap visualization.

The service offers a read-only demo that does not require an account, allowing potential users to explore the interface immediately. However, all places are currently taken for the beta, meaning users must join the waitlist to access the full functionality. A new account can be created in two minutes without needing a credit card.

The platform maps terrain using a grid of 1.73 km squares shared with VeloViewer, Statshunters, and Squadrats. It automatically detects and pins every col and summit on the map of the user's outings. This grid system helps visualize the exact area covered during each activity session.

Sleipnir Analytics is specifically designed for endurance athletes who want to understand their training and track fitness across seasons. It is suitable for runners, cyclists, skiers, hikers, and swimmers who use compatible sports watches or can import activity files. The service aims to provide clear explanations for every training recommendation.

The service is currently offered in a limited free beta, with certain advanced features planned for a future premium offering. The adaptive race plan, power analysis, and multi-month progression tracking are among the features that will join the premium tier. The col collection and basic swim session analysis remain free after the beta.

Users can contact the company by leaving their email address to be notified about new features and updates. The business promises to send only a few messages per year, with an easy one-click unsubscribe option included in every message. Account deletion can be requested simply upon demand.

The website explicitly states that the demo remains open without an account, even though all beta places are currently taken. This allows anyone to explore the read-only interface without needing to register or wait for a spot. The account creation process is described as taking only two minutes.

The official website of Sleipnir Analytics is gosleipnir.com.

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