The Cardiff Blues were formed in 2003 when Welsh rugby moved from a local to regional team structure. Cardiff Rugby Football Club, unlike the other fledgling regional sides, were allowed to form their own standalone team and so the Cardiff Blues were born. Since their creation, the team have played their home matches at the Cardiff Arms Park, with some high profile fixtures being played at the neighboring Principality Stadium.
The Blues are yet to win a league title but have narrowly missed out on two occasions, finishing in second place in both the 2007 and 2008 seasons. There have been on-field glories in cup competitions though, with silverware brought home to Cardiff several time over the last decade. The Blues went unbeaten in the 2008-09 Anglo-Welsh Cup, winning their group and overcoming Northampton in the semi-final on the way to a 50-12 victory over Gloucester in the final at Twickenham. They achieved the distinction of becoming the first Welsh side to win a European trophy in 2010, their successful European Challenge Cup campaign ended with victory over Toulon in Marseille by a score of 28-21. The Blues won the same competition again as recently as 2018, this time with a thrilling 31-30 result against Gloucester in Bilbao.