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Analyze Your Activities

Deep-dive into every ride, run, and swim with advanced interval detection and metrics.

Activity timeline chart showing power, heart rate, and detected intervals

Activity Timeline

View your activity with Coggan metrics plus unique Intervals.icu metrics. Automatic interval detection finds your efforts, with spike detection and correction for power and HR data.

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Activity power zone distribution and curve chart

Power Charts

Analyze zone time distribution, view your 42-day power curve, histograms, and best efforts all within the context of a single activity.

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Decoupling chart showing power and heart rate drift during a ride

Decoupling

Track your aerobic fitness through cardiac drift analysis. The Power/HR Z2 metric provides a clear picture of your aerobic efficiency over time.

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Seiler-style decoupling chart with percentage of reserve metrics

Seiler Decoupling

Analyze decoupling using 60-second moving averages with power and heart rate expressed as a percentage of reserve, inspired by Dr Stephen Seiler's research.

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Heart rate zone distribution chart

Heart Rate Charts

View heart rate zone time distribution and duration curves to understand the cardiovascular demands of your activities.

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Cumulative heart rate time chart

Cumulative HR

Visualize cumulative time spent at heart rate levels. Useful to check that your VO2 max intervals are achieving sufficient time at high heart rates.

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Intervals data table showing detailed metrics for each effort

Intervals Table

View detailed metrics for every detected interval in a data table. Export to CSV for further analysis. Popup help tooltips explain each metric.

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Activity comparison view with overlaid power and heart rate traces

Compare Activities

Overlay activities on top of each other to track progression of interval sessions, compare different athletes, and analyze performance changes over time.

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Activity map showing route with wind and weather overlay

Map & Weather

View your activities on an interactive map with historical weather data overlaid on the route. See wind direction and speed, precipitation, and temperature along your ride or run.

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Activity heatmap showing power and cadence data density

Heatmaps

Visualize activity data density with heatmaps and histograms. Pick any two streams for the axes, set bucket sizes, and see where you spend the most time. No coding required.

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Custom activity chart showing user-created data visualization

Custom Activity Charts

Create your own activity charts using JavaScript and Plotly. Access power, heart rate, pace, streams, intervals, power curves and more. Share your charts with the community.

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