In one of the most highly anticipated events at the World Athletics Championships, Usain Bolt of Jamaica won the gold medal in the men's 100-meters on Sunday. It took Bolt just 9.58 seconds to assume the title of the "World's Fastest Man".
Tyson Gay of the United States beat Bolt out of the blocks, but the Jamaican accelerated past the field and never looked back as he snapped the tape in a world record time in the final event. Bolt says he was confident going into the race.
"For me it was all about just winning," said Usain Bolt. "And I went out to execute and I won. And I got 9.5, so I'm just happy with myself."
Gay took the silver medal in a U.S. national record time of 9.71 seconds, while Asafa Powell of Jamaica took the bronze in 9.84.
Earlier, Olga Kaniskina of Russia earned gold in Sunday's first medal event. She won the women's 20 kilometer race walk, with a time of 1:28:09.
Jessica Ennis of Britain sewed up the women's heptathlon gold medal with a time of 2:12.22 in the 800-meters - the last of the seven events in the discipline. She finished on top by a wide margin, with a total of 6,731 points. Germany's Jennifer Oeser won silver with 6,493, while the bronze went to Poland's Kamila Chudzik who earned 6471 points.
Valerie Vili of New Zealand captured the gold in the women's shot put event with a throw of 20.44 meters. The silver went to home-country favorite Nadine Kleinert with a personal best toss of 20.20 meters, while Gong Lijiao of China took home the bronze with a 19.89 meter throw.