The current study focuses on careers which have developed within Flanders, using the Flemish Ph.D. as a starting point and the promotion to professor as an end point. About 1 in 5 Ph.D. graduates at a Flemish university obtain an academic post as professor at the same or a different Flemish university. This share is the combined result of opportunities to remain within the Flemish academic system, interest to establish a career path within the system and degree of internationalization within the system. The increasing number of Ph.D. graduates implies that this figure will decrease slightly for the current generation if the total number of professorships is to remain the same. Comparing recent cohorts with older ones, the time between Ph.D. completion and entry at professorial level now more often covers a longer period of time. Of those who funded their Ph.D. through competitive scholarships and Research Assistant appointments, higher shares established an academic career in Flanders. Ph.D. graduates in the natural sciences and engineering –less often establish an academic career. Finally, men more often than women used to continue their early-stage research career within academia.