This IS Windsurfing: Defi Wind 2014

I came to Catsailing directly from Windsurfing, and it’s still remains a blast. Unlike kites you need to work harder your route to master full speed planning in high winds, but once learned the reward is huge.
In Carnac only a Formula Windsurfer matched the Flying Phantom upwind , then he retired.

Check this Defi Wind 2014 edition video above, Impressive.
More info at www.windmag.com/defi-wind