In 2015, Hannah began the year with a run of six straight missed cuts but she turned her game around spectacularly mid-season, beginning at the ISPS HANDA Ladies European Masters in July. She finished 6th at the Aberdeen Asset Management Ladies Scottish Open, T17th at the Ricoh Women’s British Open and then finally claimed her maiden Ladies European Tour title by two strokes at the Tipsport Golf Masters at Golf Park Pilsen in the Czech Republic in early August. Starting the final round four off the pace, she carded seven birdies in the final round. Hannah ended the season ranked 11th on the Order of Merit which was her best finish on the Tour.
In 2014, Hannah made 20 starts and recorded 4 top 10 finishes including T2nd at the Hero Women’s Indian Open.
In 2013, Hannah attended a total of 20 events with her best performance 2nd at the Aberdeen Asset Management Ladies Scottish Open. She posted three top-10 finishes including T7th at the Allianz Ladies Slovak Open Presented by Respect and T3rd at the Hero Women´s Indian Open. She ended the season ranked 27th on the ISPS Handa Order of Merit and posted a total of 5 eagles, following Stacey Keating (total of 6).
In 2012, Hannah’s rookie season, she played in 11 events and her best finish was T11th at the Deloitte Ladies Open. She ended the season ranked 76th on the ISPS Handa Order of Merit and secured her card for her second season in 2013.