[2] Nineteen teams were invited to start the race.

The leader of the classification received a red jersey; it was considered the most important of the 2018 Tour of Croatia, and the winner of the classification was considered the winner of the race.

Additionally, there was a points classification, which awarded a blue jersey.

Points towards the classification could also be accrued – awarded on a 5–3–1 scale – at intermediate sprint points during each stage; these intermediate sprints also offered bonus seconds towards the general classification as noted above.

There was also a mountains classification, the leadership of which was marked by a green jersey.