You can surf fast on a windsurfer - really fast! In fact, you can reach such high speeds on a windsurfing board that you'll be bouncing on the water if you fall off. Windsurfing legend Bjørn Dunkerbeck holds the current speed record with his 103 km/t - but we don't surf quite that fast on the Master Class Pro, and luckily, you alone decide the speed of your windsurfer. That being said, you can easily get up to 35-50 km/t on a surfing course which is also very fast.