[2] Allen attended California State University at Northridge and became the first from her school to qualify for the LPGA Tour.

[2] Allen came close to a first title as she was runner-up in the 2011 Open de España Femenino at La Quinta Golf & Country Club, a stroke behind winner Melissa Reid.

She also finished runner-up at the 2012 ISPS Handa Ladies British Masters, a stroke behind Lydia Hall, and again at the 2013 Lalla Meryem Cup in Morocco.

[3] Allen resided in Edinburgh, Scotland, after marrying Clare Queen, a former LET player and Scottish Golf's performance director in 2016.

[6][7] In 2022, she retired from tour to become the new head coach of the Urban Knights women's golf program at Academy of Art University in San Francisco, California.