Rannula is the Estonian youth champion in the U16 and U20 age classes.
In summer 2022, Rannula became the head coach for Estonian most ambitious team BC Kalev.
[2] He has worked as an assistant coach for the Estonian U18 and U20 youth teams.
[3] Since 2019, he is the assistant coach of the Estonian men's national team.
This biographical article relating to an Estonian basketball figure is a stub.