Career
He also played for England Sevens. Amesbury started playing rugby at the age of six. Playing mini-rugby at Petersfield R.F.C.
He joined Lord Wandsworth College when he was 13 and by the age of 15 was of a good enough standard to represent the Under 16"son
In 2004, Amesbury played full back for the London & South East Division and was selected for the England training group. Also in 2004 he played for England Under 18"s and during the 2004/05 season played regularly for Quins in the Zurich A League.
He made his First XV debut for Quins during the 2005-2006 season. Scoring twice in the 43–3 victory over Otley at the Stoop.
Amesbury was part of the England Sevens squad that competed in the 2006-2007 Institutional Review Board Sevens World Series.
Amesbury made his starting debut for Quins against Leeds at the beginning of the 2007-2008 season. A Quins academy player, he was rewarded with a first team contract. At the end of the 2008-2009 season he chose to move on due to the lack of game time at Quins and signed for Premiership side Newcastle Falcons.
During the 2011/12 season he played on from January 2012 whilst suffering from appendicitis, which was operated on in the Summer off season period.
During the 2013-2014 season Bristol Rugby signed Amesbury from Sale Sharks to help their push for promotion for the remainder of the season. After losing in the playoff final against London Welsh he stayed on for the 2014-2015 in the RFU Championship.