- Josh Taylor, Alan Morgan, Gavin Sheehan, James Plumley
- 26/9/9 day(s):hour(s):minute(s):second(s)
- United Kingdom (London)
The fastest circumnavigation of mainland Britain took 26 days 9 hr 9 min and 58 sec at an average speed of 2.74 knots (5.08 km/h or 3.16 mph) and was accomplished by skipper Josh Taylor, Alan Morgan and James Plumley (all UK) and Gavin Sheehan (Ireland) in The Black Oyster, a 24-foot-long double-cabin ocean racing boat. The 2,000-mile (3,218-km) journey started at Tower Bridge, London, UK, on 1 June 2013 and finished there on 27 June 2013.