 In the same season, Napredak's achieved its biggest success in a domestic competition, the reaching of the Yugoslav Cup final in 2000, but lost against the Serbian giant Red Star Belgrade.Their presence in the national cup final earned them a spot for the 2000–01 UEFA Cup season.This time, the team had a little more success than the first participation, eliminating Estonia's Viljandi Tulevik in the first round, but getting eliminated in the second by Greek club OFI Crete.