- Philip Slade, Mark Belamarich
- 613.938 kilometre(s)
- United Kingdom (Plymouth)
The longest distance sailed in a double-handed dinghy is 613.93 km (381.48 mi; 331.5 nm) and was achieved by Philip Slade and Mark Belamarich (both UK), between 8 and 12 May 2017.
The pair sailed from Plymouth to the North coast of Wales. They had originally planned to sail to Faslane but had to stop for safety reasons.
The attempt took place in aid of the Royal Navy and Royal Marines Charity and Bowel Cancer UK.