Sprinter Justyn Warner serves notice he can challenge in 100 metres at 2016 Olympic Games

He was frustrated with his best because Justyn Warner believed he could have done better.

Warner, of Markham, Ont., equalled his personal best time of 10.09 seconds in the semifinals of the men's 100-metres finals Sunday, but it wasn't good enough to get him into the final of the marque track race at the London Olympics Games.

Warner needed a time of 10.02 seconds to advance. His time was still the 13th best time of the 24 sprinters taking part in three semis.

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"It was crazy," Warner told The Globe and Mail. "I didn't run as well as I wanted to or should have. I didn't get a good start. I tried to fight my way through it.

"It's just kind of disappointing. I had to go under 10 seconds and that would have got me in. I knew it was going to be 10-flat or under 10, and I'm more than capable of doing it."

Warner got an idea of how much better he needs to be by watching the final.

Usain Bolt answered all his doubters by demolishing one of the strongest 100-metre fields in Games history to repeat as Olympic champion. The Jamaican won in an Olympic record time of 9.63 seconds to join American Carl Lewis as only the second man to win back-to-back 100-metre gold.

Yohan Blake, Bolt's training partner and teammate, was second in 9.75 seconds. American Justin Gatlin, the 2004 gold medallist who was given a four-year doping ban, took bronze in 9.79.

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Ever the showman, Bolt took half a victory lap around the track. He then stopped, kissed the track and gave his "To The World" pose, pointing both fingers in the air while over 80,000 fans screamed.

Bolt caught the world's attention at the 2008 Beijing Games by sweeping the 100, 200 and 4x100-metre relay with world-record times. But there were doubts he could repeat as Olympic champion after Blake beat him twice at the Jamaican national trials.

"I felt I could do this,'' Bolt told reporters after the race. "I said it on the track, people can talk, all they can do is talk. When it comes to championships I bring it.

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"'I knew [the crowd] would be like this. I can feel that energy and I am extremely happy.''

Warner didn't make the final but the 24-year-old proved he can run with the world's fastest. He first raced a career high 10.09 in Saturday's heats, bettering the 10.15 he was clocked in at the Olympics trials in Calgary. It also tied him with Bolt for the ninth fastest time out of the heats.

Warner was already thinking about the 2016 Olympics in Rio de Janeiro.

"It was exciting," he said. "I look forward to coming back in Rio and my plan is to get on that podium. I think I'll be more than ready to do that."

Warner will run the anchor leg in the 4x100-metre relay with his younger brother, Ian. The Canadian team is given a solid shot of reaching the final.

"I'm looking forward to the relay a lot," Warner said. "We have a great shot at medalling. That's the plan. That's what we're coming to do."

In other Canadian track action Sunday, Michael Mason of Nanoose Bay, B.C., and Derek Drouin of Corunna, Ont., were among 14 qualifiers for Tuesday's high jump final. They both cleared 2.26 metres.

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In the women's 400-metre hurdles heats, Sarah Wells of Markham had a time of 56.47 to advance to Monday's semifinals.

"I would have liked a better time," Wells said. "I know that I'm capable of way more."

Nathan Brannen of Cambridge, Ont., was 12th in his 1,500-metre heat after he was tripped up during the race and suffered an injury to his lower leg.

Athletics Canada has filed an appeal on his behalf in hopes of advancing him to the final.

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