Romagnolo has been a frequent representative for Italy in cross country running, having competed at the IAAF World Cross Country Championships in 2007, 2008, 2010 and 2011. Her best finish came in 2010 in Bydgoszcz, where she placed 24th overall. She was tenth at the 2008 European Cross Country Championships. She participated at two editions of the Summer Olympics (2008, 2012), she has 22 caps in national team from 2006 to 2012.