GB Row 2013 builds on the experience and publicity gained in GB Row 2010. In the 2010 event the victorious ladies crew the Seagals gained a World Record as the first all-female team to row unaided round Britain.
A day-by-day account of their achievement can be found here: 2010 website
In 2009 a team led by Nick Bevan set out to challenge the mens record set in 2005. Their voyage was abandoned in the Irish Sea in order to go to the rescue of a light aircraft pilot who had ditched nearby in the sea in a storm. You can read the amazing story of this rescue in the Times here: part1 and part 2 and on the GBRow 2009 website.
The first GB Row Challenge took place in 2005 when a four man team headed by William de Laszlo set a new World Record of 26 days 21 hours and 14 minutes for unaided rowing around Britain.
You can read more about their achievement here: 2005 Record Breaking Row
For the earlier history of GB Row and the Anglo American Boat Race read The Story so Far .