From the rules: http://www.netflixprize.com/rules http://www.netflixprize.com/rules When the RMSE of a submitted prediction set on the quiz subset improves bey

From the rules: http://www.netflixprize.com/rules http://www.netflixprize.com/rules When the RMSE of a submitted prediction set on the quiz subset improves beyond the qualifying RMSE an electronic announcement will inform all registered Participants that they have thirty (30) days to submit additional candidate prediction sets to be considered for judging. At the end of this period, qualifying submissions will be judged (see Judging below) in order of the largest improvement over the qualifying RMSE on the test subset.