Original: The international cycling association, the Union Cycliste Internationale (UCI), made TdP part of the UCI ProTour since 2005, and part of the UCI World Ranking calendar since 2009.
Simplified: Although the Tour de Pologne had not reached a high status, and was little known, the International Cycling Union (UCI) decided to make it a part of the UCI ProTour from 2005, which means that the major cycling teams compete in the race.