In November 2006 at the World Open in Belfast, she justified her seeding of eighth by reaching the quarter finals. She then won the Irish Open 2007 title in Dublin. Her career highlights is at the defeat to Nicol David in the quarter finals of the Forexx Dutch Open where she took the world number one to 9–7 in the fourth set. However, a serious head injury sustained when Madeline was mugged in Milan, Italy, put a halt to the rest of the season.
The inactivity caused a dip in her ranking that took her out of the top ten after nearly two years. In her first event back in 2008, in the Buler Challenge in Hong Kong, she reached the final. She then make it to the semis of Seoul Open followed by the semi final berth at the CIMB Singapore Masters from an unseeded position. Madeline reached a career-high world ranking of World No. 3 in April 2011.