GC vs Strava swims

[Yoakim_Persson]

There seems to be a discrepancy with with how swims are processed between Strava and GC. For example these two:
Strava

Garmin Connect:

Apart from the Pace chart missing from the Garmin report, the overall time duration and pace are different. It appears that GC is using overall duration, while Strava uses movement time.

Garmin Connect website

Thank you for this amazing toolset.

[david]

Tx. I had a look at that swim and there isn’t a velocity trace but it does have “lengths” which is something I haven’t seen before. Looks like Strava is using that to plot velocity. I can probably do something similar.

[CEscorcio]

My indoor swim has an issue with the load, any idea why?

Thanks in advance

[david]

Intervals.icu now constructs a velocity stream from the lengths data if present. So you get a pace chart like Strava. This is also used to calculate moving time which for this example comes out to within a second of the Garmin Connect value.

The pace chart should probably be secs/100m or something for swims right? Instead of km/h.

[Yoakim_Persson]

Awesome response/implementation time, thanks.

Yep, I’d say mins/100m. This is what Garmin does

[david]

Just added. Tx.

Added 'Swim Pace' chart

To activity timeline page. Shows mins/100m. Tx @Yoakim_Persson [Screen Shot 2021-01-09 at 12.39.53] This is on by default for swims but not if you have customised the displayed charts. Click “Charts” and look for “Swim pace” to add it. There is a matching interval field “Swim pace” but this will only be calculated for swims analysed after Sunday AM (GMT+2) as I still need to deploy it.