Luxembourg's first EuroBasket appearance was at EuroBasket 1946 in Geneva. They found themselves heavily over-matched in the preliminary round. Losing all of their matches and being outscored by 113 points over three games finishing in last place in the group. The semifinal round, which was essentially a 7th–10th place classification round for Luxembourg, saw their first win. They defeated England 50–27. This advanced them to a playoff for 7th and 8th places; they were defeated by Belgium to finish 8th out of the ten team competition.