The 57th Dan Kolov & Nikola Petrov Tournament, was a sport wrestling event held in Ruse, Bulgaria between 28 February-3 March 2019. It was held as the fourth of the ranking series of United World Wrestling. This international tournament includes competition in both men's and women's freestyle wrestling and men's Greco-Roman wrestling. This tournament is held in honor of Dan Kolov who was the first European freestyle wrestling champion from Bulgaria and European and World Champion Nikola Petroff.