Clear performance comparison for better decisions
Compare runs and athletes to understand where performance differences begin and how they develop.
Protern helps coaches see where time is gained or lost and explain those differences clearly.
Seeing differences clearly
Move beyond final times
Comparing performance is part of every training day. Final times and split times show a result, but they do not always explain why that result happened, which is explored in more detail in video analysis vs ski timing systems.
Protern allows coaches to compare runs using video and athlete data together, rather than relying only on final times or splits. This makes it easier to see where differences appear on the course and how they develop through the run.
Athletes can also see these differences clearly, which supports better understanding and learning.
How Protern supports performance comparison
Side-by-side video comparison
Compare two or more runs using video shown side by side.
Athlete data can be displayed on each run to highlight differences as athletes move through the course, section by section.
Meaningful comparison references
Runs can be compared to the overall fastest, an athlete’s fastest, or the fastest run from a specific training set.
This helps ensure comparisons are relevant and fair.
Speed analysis across the full run
Speed can be analysed over time and along the course.
This helps coaches understand how speed builds, drops, or changes between runs.
Flexible grouping of runs
Compare runs from a single athlete, multiple athletes, or mixed groups.
This supports both individual development and group-level analysis.
Comparing runs with video
Video comparison connects performance differences to technique and execution.
Seeing runs side by side makes small differences easier to identify and explain.
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Select the runs you want to compare
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Protern automatically aligns athlete data to the correct video timing.
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View the runs side by side with time, speed, acceleration visible
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Review key sections to explain where differences appear
Choosing the right comparison reference
The way runs are compared matters.
Protern allows coaches to choose comparison references that match the training goal.
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Choose whether to compare to the fastest run, athlete's fastest, or the fastest for the particular run
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See differences in time and speed clearly through colour coding.
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Review differences and change the reference for deeper analysis
For a structured guide to selecting references and identifying meaningful sections, see how to compare ski runs using video and GPS data.
Analyzing speed in Protern Web
Speed analysis focuses on athlete data rather than video.
This view complements video comparison by focusing purely on data patterns across runs.
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Analyze runs from one athlete or multiple athletes
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View speed plotted over time and along the course
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Identify where speed differences begin to appear
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Use this insight to guide discussion on tactics and technique
To understand how GPS athlete data is measured and interpreted, read GPS ski analysis explained for coaches.
Explore what else you can do with Protern
Each Protern capability supports a different part of the training and analysis workflow. Explore the other capabilities below to see how they work together in daily training.
Fast and Automatic Video Access
Video appears automatically for athletes, under coach control, so review happens without exporting or sending files.
Data-Linked Video
Review video with performance data shown directly on the run to clearly explain what happened and why.
Fast and Easy Workflow
Reduce setup and manual handling by managing timing and video together in one simple workflow.
Shared Understanding Between Coach and Athlete
Create a shared reference for feedback by letting coaches and athletes see the same video and data.
Start comparing performance with confidence
Use Protern to compare runs and athletes with clarity.
Start with a Protern Pack to access performance comparison tools.
If you film with cameras, add a TimeLink to connect your cameras to Protern.