The final rankings from the 22 rounds of RaboDirect PRO12 matches were as follows:
4. Glasgow Warriors
This means the three possible venues for the RaboDirect PRO12 final are - the RDS, home of Leinster, the Liberty Stadium, home of the Ospreys, and Thomond Park, home of reigning champions Munster.
One of the three venues will be ruled out after the first semi-final in Swansea tonight when the Ospreys host Munster. Whichever team wins will still have a chance of hosting the final.
However, if Leinster beat Glasgow Warriors at the RDS on Saturday night then they will host the final due to their number 1 ranking.
RaboDirect PRO12 Chief Executive John Feehan explained: "Ever since we introduced the play-off system at the start of the 2009/10 season we have wanted to reward the team finishing in the top two positions in the regular season.
"This means they get home advantage in the semi-finals and then, possibly, in the final.
"We have enjoyed full houses at both previous finals - 19,500 for Leinster v Ospreys in 2010 and 26,100 for Munster v Leinster in 2011 - and look forward to another world class, capacity occasion at the end of this month. Each team will be able to ask for up to 50% of the tickets for the final.
"Due to the Republic of Ireland international football match against Bosnia at the Aviva Stadium on Saturday, May 26, PRO12 decided, after discussions with both Leinster and our TV partners, to avoid any potential clash and switch a Dublin final to Sunday, May 27.
"It was also felt by all parties that due to the tight turnaround between the semi-finals and final, it would be better to confirm the RDS as Leinster's home venue rather than consider a possible switch to the Aviva Stadium, to help with the ticketing, policing, travel and administration of the final."
Below are he confirmed dates and kick-off times of all possible combinations for the RaboDirect PRO12 final, the broadcasters will be announced once the two finalists are known:
SATURDAY, MAY 26 -
Ospreys v Glasgow Warriors, Liberty Stadium (20,000 capacity), kick-off 6pm
Munster v Glasgow Warriors, Thomond Park (26,000 capacity), kick-off 6pm
SUNDAY, MAY 27 -
Leinster v Ospreys/Munster, the RDS (18,500 capacity), kick-off 4pm