It's the last day of the Aviva Premiership regular season when finishing positions and the semi-final line-up will be confirmed. All six fixtures are scheduled to kick off at 3.15pm.

Saracens, visitors to Welford Road in Round 22 today, are already assured of top spot and a home semi-final next Saturday, while Northampton Saints and Tigers have also earned a semi-final place, though the finishing order will only be confirmed this afternoon. Harlequins and Bath Rugby meet today and contest the other play-off spot.
 
Saracens are top on 85 points, Saints have 73, Tigers 69, Bath 66 and Harlequins 63. If sides finish level on match points, ranking is determined as follows:

1. number of wins
2. match points differential
3. match points scored
4. aggregate match points scored against the other club.
5. most wins, excluding first league match of the season, then second league match and so on, until it can be established which is the higher placed club.

Weekend pointers:

• Two league points for Northampton Saints at home to London Wasps (live on BT Sport 2) would ensure a home semi-final no matter what happens elsewhere.
• Tigers can only secure a home semi-final if they win with a bonus point AND Northampton Saints take no points at home to Wasps. Tigers would then finish on 74 points, Saints on 73.
• A Tigers win without a bonus point and Northampton picking up nothing would leave both clubs on 73 points and with 15 wins. Finishing positions would be settled by points difference (Saints currently +193, Tigers +108).
• If Saints pick up 1 point and Tigers win without a bonus, Saints will finish a point ahead.
• If Tigers pick up 2 points they are guaranteed at least third place.
• If Tigers pick up 1 point or 0 points, Bath could move into third with a win at Harlequins.
• Defeat for Bath would guarantee Tigers at least third place.
• Harlequins host Bath Rugby with live coverage on BT Sport 1. A 4-1 league points victory for Quins would mean they qualify for the semi-finals. Bath will make the last four if they win or draw, or if they lose by 4-2 league points.

With three of the clubs involved in the chase for semi-final berths having also qualified for European finals, Premiership Rugby has decided to avoid a potential short turnaround and to give its semi-final clubs as much notice as possible. They have therefore announced that the semi-finals will be played next Friday and Saturday. Both matches will be live on BT Sport.
 
The semi-final line-up is as follows: 1st v 4th next Saturday at 2pm, 2nd v 3rd next Friday at 7.45pm.
 
Ticket details for all possible semi-finals involving Leicester Tigers have been announced. Click here for more details.
 
Highlights from Round 22 are shown on Sunday, on ITV4 at 8pm and ITV at 11.15pm, then again on Monday on ITV4 at midnight.