Answer
Mimoun won 2 silver medals at the 1950 European Athletics Championships, in the 1500 metres and 5000 metres. In the 1500 metres, he finished behind the Swedish runner Gunnar Höckert, who set a new world record of 3:43.0. In the 5000 metres, he finished behind the Belgian runner Gaston Reiff, who also set a new world record of 13:56.6.