Greatest distance on a windsurfer (flat water) in 24 hours

According to Official Guinness Records,

The greatest distance windsurfed on flat water in 24 hours is 613.8 km (331.43 nautical miles;381.4 miles) and was achieved by Dennis Klaaijsen (Netherlands) at Grevelingenmeer, Zonnemaire, Netherlands on 23-24 June 2013.

For a complete list of 2013 records, please visit 2013 Guinness Records in Netherlands.

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