With Ulster taking on Harlequins at Twickenham Stoop in the final pool stage match, you might be wondering what it all boils down to at Saturday lunchtime, with Champions Cup knock-out qualification on the line.
Champions Cup Round of 16 - what do we need to qualify?
A win of any kind against Harlequins would see Ulster qualify for the Round of 16.
Harlequins have already qualified, but will be pushing to get the best pool position possible.
Fifth-placed Racing 92 are two points behind Ulster and face Cardiff Rugby, in Paris, on Saturday at 3.15pm.
If Ulster were to lose against Harlequins, with Racing 92 winning, it would leave Ulster in fifth position and the province would enter into the Challenge Cup Round of 16.
If Cardiff Rugby win against Racing 92 with a bonus point, they could potentially qualify if Ulster fail to win or get two losing bonus points.
Ulster could draw and go through, but would need Racing 92 to lose.
If teams are equal on points, pool position will be decided by points difference.
What happens if we win?
Ulster would enter the Champions Cup Round of 16.
All clubs will be ranked in descending order based firstly on their ranking in their pool and subsequently on the number of match points they have accumulated, to create an overall ranking from 1 to 16.
The Round of 16 fixtures would be determined as follows:
Investec Champions Cup, Round of 16 - 5/6/7 April<br>
R16 1: Number 1-ranked club v Number 16-ranked club <br>
R16 2: Number 2-ranked club v Number 15-ranked club <br>
R16 3: Number 3-ranked club v Number 14-ranked club<br>
R16 4: Number 4-ranked club v Number 13-ranked club <br>
R16 5: Number 5-ranked club v Number 12-ranked club <br>
R16 6: Number 6-ranked club v Number 11-ranked club <br>
R16 7: Number 7-ranked club v Number 10-ranked club <br>
R16 8: Number 8-ranked club v Number 9-ranked club
NB The clubs ranked numbers 1 to 8 will have home advantage in the Round of 16.
What happens if we enter the Challenge Cup?
If Ulster fail to win and finish fifth, the province will enter the EPCR Challenge Cup, Round of 16 stage.
Ulster would face an away tie against a qualifying Challenge Cup team.
The Challenge Cup has a similar ranking system for the Round of 16.
Ulster would enter the competition as one of the qualifying Investec Champions Cup teams ranked from 9 to 12.
The Round of 16 fixtures would be determined as follows:
EPCR Challenge Cup, Round of 16, 5/6/7 April:
R16 1: Number 1-ranked club v Number 16-ranked club
R16 2: Number 2-ranked club v Number 15-ranked club
R16 3: Number 3-ranked club v Number 14-ranked club
R16 4: Number 4-ranked club v Number 13-ranked club
R16 5: Number 5-ranked club v Number 12-ranked club
R16 6: Number 6-ranked club v Number 11-ranked club
R16 7: Number 7-ranked club v Number 10-ranked club
R16 8: Number 8-ranked club v Number 9-ranked club
NB The clubs ranked numbers 1 to 8 will have home advantage in the Round of 16.
And if we finish bottom of pool 2?
Ulster would exit the Champions Cup and would not qualify for the EPCR Challenge Cup.