This website lets you view, edit, and analyse workout files
in the .fit format, which are mainly produced by Garmin
devices. Your files are processed entirely in your browser —
they are never uploaded to the server. You can try all features
first using the provided demo file.
Edit
Analyse
Visual Editor
Split into number of lengths
Select Swim Stroke
Enter Pool Size
Select Export Format
Select the bars on which one of the editing actions should be performed. The dashed lines indicate the start of a lap (interval).
Workout Summary per Stroke
Stroke rate per minute, strokes per length, and
consequently, the pace likely varies across the different
strokes. Additionally, the stroke rate (SPM) might have a
different impact on the pace for the various swimming
strokes.
Heartrate across workout
Which parts of your workout were especially challenging?
For more information, you can hover over the x-axis.
Stroke efficency
Increased stroke rate leads to a certain degree of
increased speed in the water. Additionally, improving
swimming technique to perform more efficient strokes will
also increase speed and potentially decrease the strokes
needed to cover a length (SPL). The plot demonstrates how
strokes per length and stroke rate (strokes per minute)
correspond to the pace accomplished within a lane. Looking
at data, you should observe that fastest lengths are those
with high stroke rate and/or low stroke count values. The
axis for the pace is reversed to visually account for the
fact that higher values in SPM and SPL should lead to
faster pace (lower values).
Stroke Analysis
Good swimmers are able to maintain a constant stroke
count at a high stroke rate. Unfortunately, for most of us,
increasing the stroke rate often leads to an increase in
stroke count. This indicates that more strokes are needed
per lane, resulting in a less effective stroke and wasted
energy.
Intervals
Intervalls are clocked automatically on rest or can be
triggered by the user.
