A referee from a small country like Luxemburg will never get enough experience to be in charge of a Champions League match, or even become a FIFA badge holder. Lucky for Alain Hamer there is such a thing as an international exchange programme for refs from small countries. This way Hamer got the chance to officiate many matches in Belgium (a somewhat bigger country than Luxemburg) and even in the French Ligue 1.
He is a UEFA Elite Category referee.
women
Although he was on the long list and he has a lot of experience, Alain Hamer was not one of the referees in Germany 2006. Still he has seen his share of World Championships: the one for women in 1995 (Sweden).
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Other tournaments Hamer participated in were Euro U21 1998 (Romania), World Youth Championship 2001 (Argentina), 4th Official in
Euro 2004 (Portugal), African Cup 2004 (Tunisia) and World Cup U17 2005 (Peru).
CL
In the years he has been a FIFA referee Alain Hamer is slowly working his way into the top ten of the referees who have officiated the most Champions League matches. There is a list on the RSSSF site. On that list Hamer is number 12.
fouls and cards
Alain Hamer has an exceptionally high card average and is known to whistle a lot, sometimes every 1.5 minutes. (see palmares and did-you-know section)