What is the fine-grained topic of the following text: When I ran the anchor leg to a gold medal with my Canadian teammates Glenroy Gilbert, Bruny Surin, and Robert Esmie in the 4x100-metre relay at the 1996 Atlanta Olympics, it was my responsibility to motivate the guys as unofficial captain and leader. Only return the topic.
Winning a gold medal in the 4x100-metre relay at the 1996 Atlanta Olympics