I wish Bolt had done his best, for the Olympic 100 meter

I was very excited to see the news that Bolt had set a new record, amazing 9.69 seconds, for the 100 meters. See here.

But when I watched the game, I felt uncomfortable. He was fast, and it was apparent that he was a great athelete. But it was also clear that he did not do his best for the last 20-30 meters. Isn't the spirit of the olympics, and more generally sports, about doing one's best much more than deciding who is better?

I admire him for extending a human limit. I praise him for his speed. But I wish he had done his best, so that I could praise him wholeheartedly.