Does anyone know of any web sites or apps that can analyse a GPS track and determine things like waves caught, speed, tacks/gybes etc? I have looked and there's a couple of very basic ones but nothing with any kind of detailed analysis.

I have tried various surfing and sailing apps on smart watches to track sessions. They're all pretty crap. They suffer from the fundamental problem of being locked in to the developer's assumptions about what is happening.They use all sorts of predefined parameters for detecting waves caught and tacks and gybes and all the rest and try to do it in real time.

When I'm out on the water I am too busy to look at a watch to see what has been happening, and the conditions and gear often mean that the way I am riding is very different from other session.

I think it would make more sense to load a GPS track into an app then tweak all the parameters to extract the information. Many GPS apps or smart watch can export a GPX file that contains all the data.

- gybes/tacks determined by speed and direction changes. Similar rules could detect waves caught.
- average speeds over n seconds
- average speeds within bounds to filter out peaks and troughs and lulls and glitches

I attached a BOGA Grip, 260 Version, with an IGFA Certified Fish scale good to 60 lbs on the Tow Rope.

The GoPro was attached to the BOGA at an angle to film both the rider and the metered scale at the same time. On a crappy iPhone this is hard to read but its clear at full 1080P resolution.

You can see the drag for the Foil fluctuating between ~ 4 lbs up to 18 lbs. I pegged the average DRAG to be 12 lbs

The drag on the Surfboard from ~14 lbs to 30+ lbs - See next.

Its On!

Ocean Addicts are running a hydro-foil surfing speed competition.

Foilers from all over Australia can register there PB's Heck why stop there!.. foilers from all over the world can and are encouraged to register their times.

For more info and to register go to the Ocean Addicts web site via the link bellow...

www.oceanaddicts.com.au/hydrofoiling-competition/

Get your name on the board. Lets see what you've got!!!!