Rhys Davies was born in Edinburgh, Scotland but has lived in Wales for the majority of his life. He played collegiate golf in the United States at East Tennessee State University where he won ten times and was a first team All-American in 2005, 2006, and 2007. He played on two Walker Cup teams (2005 and 2007), and was second in the World Amateur Golf Ranking (May 2007), before turning pro in September 2007.
Rhys successfully came through the Asian Tour’s qualifying school, allowing him to play on that tour for the 2008 season.
Davies won twice on the Challenge Tour in 2009 and finished fourth on the Challenge Tour Rankings to earn his European Tour card for 2010. He won his first European Tour title at the 2010 Trophée Hassan II. At the 2010 Celtic Manor Wales Open, he shot a final round 62 to set the course record on his way to finishing as runner-up. This performance elevated Davies into the top 50 of the Official World Golf Ranking for the first time. He finished the season ranked 18th on the European Tour Order of Merit. After a poor 2012 season, Davies narrowly failed to maintain his full playing rights for the 2013 season.