A draw was used to allocate two second seeds to Tier 1; the remaining team went into Tier 2. This allocation indirectly determined which fourth-seeded team entered Tier 2, while the others entered Tier 3. Given the nature of the Qualifying Competition, a competition including developing rugby nations and Italian clubs not competing in the Pro12, Rugby Europe 1 and Rugby Europe 2 were automatically included in Tier 4, despite officially being ranked 1/2 from "that competition". The brackets show each team's seeding and their league (for example, "1 Top 14" indicates the team was seeded 1st from the Top 14). The following restrictions applied to the draw:  The draw took place on 29 June 2016, in Neuchâtel, Switzerland. Teams played each other twice, both at home and away, in the group stage, that began on weekend of 13/14/15/16 October 2016, and continued through to 19/20/21/22 January 2017, before the pool winners and three best runners-up progressed to the quarter finals. Teams were awarded competition points, based on match result. Teams received 4 points for a win, 2 points for a draw, 1 attacking bonus point for scoring four or more tries in a match and 1 defensive bonus point for losing a match by seven points or fewer. In the event of a tie between two or more teams, the following tie-breakers were used, as directed by EPCR:  The eight qualifiers were ranked according to performance in the pool stages, and compete in the quarter-finals, which was held on the weekend of 30/31 March, 1/2 April 2017. The top four teams hosted the quarter-finals against the lower teams in a 1v8, 2v7, 3v6 and 4v5 format. The semi-finals were played on the weekend of 21/22/23 April 2017. In lieu of the draw that used to determine the semi-final pairing, EPCR announced that a fixed semi-final bracket would be set in advance, and that home advantage would be awarded to a side based on ""performances by clubs during the pool stages as well as the achievement of a winning a quarter-final match away from home"". Home advantage was awarded as follows:  The winners of the semi-finals contested the final at Murrayfield on 12 May 2017.