at the beginning of 2010, the borlée-twins were back in shape. at the 2010 world indoor championships, the 4 × 400 m relay team with teammates nils duerinck and antoine gillet, they won their heat in 3:09.84s, a national indoor record. in the final, with cédric van branteghem instead of nils duerinck, they won silver with a time 3:06.94s, another national record. it was the first time a belgian relay team had ever delivered such a performance.