But if the match is a draw:

(i) the team which has scored the greater number of tries in the match; and
(ii) if tries are equal, the team with the best points difference from all three matches

If three teams in the same pool at the end the pool stage are equal on match points, then qualification will be determined by the results of the matches played between those three teams concerned (i.e. A v B, A v C, B v C) as follows:

(i) the team which has earned the greater number of match points from the matches;
(ii) if match points are equal, the team which has scored the most tries in the matches; and
(iii) if tries are equal, the team with the best points difference from all the matches in the pool stage.

If all four teams in the same pool end the pool stage equal on match points, then qualification will be determined by:

(i) most tries scored in the pool stage; or
(ii) if tries are equal, the best points difference from all the matches in the pool stage.

If qualification is still unresolved, qualification will be based on:

(i) if points difference is equal, the team with the fewest number of players shown a red card in the pool stage; or
(ii) if the number of players shown a red card in the pool stage is equal, the team with the fewest number of players shown a yellow card in the pool stage; or
(iii) if still unresolved, by the toss of a coin.

(source: http://www.edfenergycup.com/)