The purpose of this study is to examine at-risk students and the reasons they give to explain their poor academic performance, with a view to developing a typology of at-risk students. A case study methodology was used to investigate the total population of at-risk students for Semester 2, 2008 studying at the Singapore campus of an Australian-based university. Poor academic performance means that students are placed "at-risk" of exclusion from the University if their grades do not significantly improve in subsequent semesters. The majority of students cite employment pressures (primarily work commitments interfering with study) and personal relationship difficulties (including divorce and family commitments) as the main causes of their at-risk status. Our findings may help universities implementing at-risk programmes reduce student attrition and better aid students in completing their degrees. (Contains 3 tables.)