Having gained promotion to a higher league in the European Championships for the 2018-2019 season, the ambition is to further rise in the ranking. There are many athletics clubs in Luxembourg representing most of the country's main towns. The sport's domestic received a boost from the patronage of The game is more popular in the south of the country, having developed earliest in the industrial Rugby Union is a minor but growing sport in Luxembourg, with participation numbers having drastically increased over the past decade, now residing at 2,370 licences. CSCE and Rugby Club Terre Rouge only have youth-sides which compete in Belgium and France. Walferdange also sports the nation's only female 15s side, which plays in the second Belgium division, competing for promotion. Luxembourgers have had little success in professional tennis. There are many athletics clubs in Luxembourg representing most of the country's main towns. At an organisational level, the same clubs are often affiliated to both the Luxembourg Athletics Federation (FLA) and the Luxembourg Triathlon Federation, the governing bodies for athletics and triathlon, respectively. The largest club is CAL Spora Luxembourg, with a membership of 400 members. This success has been fuelled by the junior national sides, which compete in the European National Championships at U18 and U20 level, in both Rugby 15s and 7s. The largest club is Luxembourg's sole Olympic gold medalist was an athlete. Club Rugby in Luxembourg is successful at both junior and senior level. Rugby Club Luxembourg's first 15 plays in Bundesliga 1, with Walferdange Rugby and RCL II competing in lower German leagues. The Senior Men National 15s is one of the highest ranked national teams among all team sports in Luxembourg, currently sitting at 64th place, making it one of Luxembourg's most successful national teams.