Simplify the following text for a Grade 12 native English-speaking person.
Original: 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 .
Simplified: 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 .