In Dynamic Queue , you have the option to choose your primary role and your secondary. An amazing idea implemented by Riot but it seems like there is a flaw. 8 or 9 out of 10 games I usually get my secondary role. In my case , I always put BOT as primary role and TOP as secondary role. I usually get top ! :( Is there a particular reason for such to happen ? Or is it because ADC is a popular rule ? This problem should be investigated ASAP .
PS : When I reverse those roles ( TOP into primary and BOT into secondary ) , it seems that the chances are increased ( weird ) .