Born and raised in Gladbeck in North Rhine-Westphalia, Masson had a decorated amateur golf career. She competed for Germany in the 2006 Espirito Santo Trophy (World Amateur Team Championship) and won the German Stroke Play Championship. She also represented Europe in the 2005 and 2007 Junior Solheim Cup. In 2008, she advanced to match play at the British Ladies Amateur, won the German Match Play Championship and the German Ladies International and was selected to represent Germany at the 2008 Espirito Santo Trophy.
After graduating from secondary school in Gladbeck in 2008, Masson accepted a golf scholarship to Oklahoma State University and played one year for the Cowgirls in 2008–09 before turning pro in December 2009.[2][3]
Professional career
In late 2009, Masson entered the four-round LET Final Qualifying School as an amateur at La Manga Club, Spain. After earning medalist honors on 21 December, she turned professional immediately and joined the LET on 1 January 2010.[4][5]