In PowerCenter, there is an Improve tab that helps runners track their progress in training.
One feature is the Training Power Heat Map. The heat map is a visual description of your running history in terms of both intensity (power) and duration. Bright Red, “hot” areas, indicate combinations of power and duration that you frequently achieve in your training. Dark blue areas occur less often. Moving your cursor over different parts of the heat map will reveal the average power, duration, and frequency for that range of power and duration. The Orange Dot will always display the maximum power that you have achieved for that given duration.
All your runs should be below the curve power line (red line) although due to browser rendering problems, a run can appear above the line. That does not affect any metric, it is just an artefact of the browser.
The longest run captured in the heat map at this time is 170 minutes, but longer runs are considered for calculating other metrics.
The map shows what you have achieved during training. That will be different than what you can achieve during a race. You can use your critical power to estimate the power you can sustain during a race (see table below):
|Distance (km)||% 10k power|
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