marian jones knows a bit about that race.he won the women's 100 meter, at sydney in 2000, then fell from grace after she admitted using performance enhancing drugs. marion, what a race, what a run from usain bolt. >> absolutely. i predicted it right, didn't i, piers? it was just -- it was incredible to watch. i think it was a bit surprising that it was as close as it was. which i think made it even more exciting. but it's pretty phenomenal. only the second man in the history of the olympics to double and it was just a wonderful race. but great for the americans and justin gatlin who i'm personally pulling for obviously had some challenges in the past few years, but, you know, has benefited from his second chance and made the most of it. but this just tells you that today's semifinal runs of the 200 meters and of course tomorrow in the finals of the 200 meters are going to be even more spectacular. >> well what is it about usain bolt, to you think, that makes him so extraordinarily? apparently he even had a mcdonald's before r

to you by bp and all of us who call the gulf home. >>> that is marion jones at home on the track and i'm back with her now. marianf the big sprinting races about to start, and in particular, is usain bolt going to be beaten? because there is a general feel ing that he is not as good as he was last time and certainly not quite as fit. >> well, it's certainly going to be an incredible athletic competition in the next few days. of course, the favorite will be usain and the question marks regarding his health status are certainly important, but usain is a champion, world record holder obviously, and he's coming to the olympic games to do some fantastic things, and that's to win. certainly he is going to be challenged by his training partner in johan blake. on the women's side, all the controversy to pass a few weeks ago with allyson and the runoff that actually was disappointied not to see. >> what did you think of that? i thought it was a strange conclusion to that. i assumed that they would both prefer as athletes to have a runoff. in the jen ba tomah didn't want to go through with it. felt so crushed having been t