The 2009–10 Principality Premiership was the fifteenth Principality Premiership season and the sixth under its current format. The season began in August 2009 and ended in May 2010. Fourteen teams played each other on a home and away basis, with teams earning four points for a win, and a bonus point for scoring four or more tries in a match. The losing team may also earn a bonus point if they lose by seven points or less. British and Irish Cup qualification and play-off news The top six clubs from the 2008-09 season qualified for the new British and Irish Cup competition. A play-off system was added at the end of the season for the top eight sides to qualify for the following season's British and Irish Cup. Only six teams can qualify for this from the eight. These play-offs do not decide the League Championship, as the league leaders at the end of the regular 26 game season will be Champions. The winners of the play-offs would win a one-off trophy. The fourteen teams competing consisted of Aberavon RFC, Bedwas RFC, Cardiff RFC, Carmarthen Quins, Cross Keys RFC, Ebbw Vale RFC, Glamorgan Wanderers RFC, Llandovery RFC, Llanelli RFC, Neath RFC, Newport RFC, Pontypool RFC, Pontypridd RFC, Swansea RFC. Teams Stadiums Table Fixtures & results Week 1 Week 2 Week 3 Week 4 Week 5 Week 6 Week 7 Week 8 Week 9 Week 10 Week 11 Week 12 Week 13 Week 14 Week 15 Week 16 Week 17 Week 18 Week 19 Week 20 Week 21 Week 22 Week 23 Week 24 Week 25 Week 26 Week 27 Week 28 Week 29 Week 30 British and Irish Cup play-offs Elimination play-offs Llandovery qualify for next season's British and Irish Cup, Aberavon are eliminated. Llanelli qualify for next season's British and Irish Cup, Cardiff are eliminated. Qualifying play-offs Preliminary Semi-finals Pontypridd were found guilty of fielding an ineligible player and so were expelled from the play-offs. Llandovery took their place in the semi-finals. Semi-finals Final Neath win 3–1 on try count External links Welsh Premier Division seasons 2009–10 in Welsh rugby union Wales