olympics 2008 cycling results

How do I save time is determined during the road race men at the Olympics in 2008? 6 riders were at the same time …?
Looking at the page: http://sports.yahoo.com/olympics/beijing/cycling/results/CRM012/1; _ylt = AncF3pH93HcPEiLwUGrjdcWYaJh4? Is_medal = 1, the first 6 riders all came to an end at the same time. How do they decide who can be 1st (Gold) 2 (silver) and 3 (bronze)? Thank you you.
Road racing, all the riders in the group are given at the same time, if there are no gaps in the group. Rank is determined on arrival at the World Health Organization actually crossed the line by 1, 2, 3 etc.
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