Demi-finale 1 (18h05 belge): 1. Kanemaru (Jap, 45.56 m.t. 2013); 2. Gregan (Irl, 45.53); 3. McQuay (USA, 44.72); 4. Kevin Borlée (44.73); 5. Henriques (Bré, 45.13); 6. Francis (Jam, 45.24); 7. Ekelund-Aenander (Dan, 45.50); 8. Masrahi (KSA, 44.72).

Demi-finale 2 (18h13): 1. Johnson (Jam, 45.50); 2. Cuesta (Dom, 45.45); 3. Jonathan Borlée (45.14); 4. Lendore (Tri, 44.94); 5. Galvan (Ita, 45.39); 6. Merritt (USA, 44.09); 7. Melendez (Ven, 45.82); 8. Brown (Bah, 45.24).