Because of the obvious disadvantages of the “mass tourism” concept, which implies schematic and insignificant travel, and the fact that it' s no longer a privilege to travel, but to experience a unique tourist experience, there is increasingly approaching to the development of selective forms of tourism, which often imply the maintenance of various manifestations. Regardless of the fact that in Republic of Croatia the dominance of the "sun and sea" product may be satisfying, the excessive concentration oftraffic on the narrow coastal belt and the poor use of development potentials, give signals of the necessity of product development from other various domains of tourism, and so also sport-manifestation. Namely, tourism and sport are mass, social, and related phenomenons whose synergy is increasingly shown to be successful. Participation in sporting events becomes an extra and sometimes the main motive for going to a tourist trip. In essence, the effects of their maintenance can be positive and negative and are mostly reflected in the contribution to promotion, improving the tourist stay in the destination and the extension of the tourist season (they change the perception of the "season" destination in the one that provides entertainment and experiences throughout the year), cultural and social progress, attracting investment into the destination and increased creative capacity of the host community. In the Republic of Croatia, the effect of sports events on tourism is described in three examples from whichis visible the great promotion of our country as a sports nation and a place of unique natural beauty and cultural heritage.