Professional era - 2005

In 2005 Ireland were considered slight favourites entering the Six Nations Championships, and won their first three matches, including a 19-13 defeat of England in Dublin. However, Ireland's dreams of their first Grand Slam since 1948 were ended with a 26-19 home loss to France. In the final round, Wales defeated Ireland 32-20 at Millennium Stadium in Cardiff to win the Grand Slam. Ireland finished in 3rd place. In 2006, Ireland showed the capacity to play top class rugby, but only inconsistently - a rout of Wales was balanced by uncertain victories against England , Scotland and Italy and a comprehensive defeat by winners France. Ireland finished second and won the Triple Crown for the second time in three years, incidentally the first ever time a trophy had been awarded for the feat.

They then embarked on their annual tour to the southern hemisphere. There they ran New Zealand close twice before a tired Ireland were thumped by the Wallabies in Perth. They returned to their clubs before they gathered once more for the last Autumn Internationals at Lansdowne Road. The South Africans came with an experimental side with an eye on the 2007 World Cup, which was soundly beaten by the Irish 32-15. Next to Lansdowne were Australia with a much more formidable squad. The weather ruined what many had tipped to be the battle of the backlines, although Geordan Murphy finished off a world class move in their 21-6 victory. That win propelled Ireland to a best ever height of 3rd in the IRB World Rankings. In the final international match at Lansdowne, Ireland thumped the Pacific Islanders 61-17, with Paddy Wallace putting in a man of the match performance with 26 points. The win completed a hat-trick of victories.