Over 200 couples danced over two days at the Crocus Expo venue to determine the winners of the last regular leg in the 2015 GrandSlam Standard Series. Dancing started at 8 a.m. for the first round for those couples that were not in the top 50 of the WDSF World Ranking. Over more than three hours, they were called to the floor in countless heats. The best made it to the decisive stages on day two, when the 12 adjudicators took up their positions in front of computer terminals and started officiating the last three rounds with the WDSF Judging System 2.1.1.