Wrestling

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In London, wrestling will be contested at ExCel, situated near London City Airport in east London's Royal Victoria Dock.

Greco-Roman vs. freestyle
There are two styles of Olympic wrestling, though the rules for both are virtually identical. The chief difference is that in Greco-Roman, a wrestler may not attack his opponent below the waist, nor use his own legs to trip, lift or execute other holds. In freestyle, both the arms and legs are used to execute holds

Match format
Olympic wrestling matches consist of three periods of two minutes each with a 30-second break in between. Athletes must win two of the three periods to capture a match, similar to tennis and its "sets". The total score does not matter. The match format is a change from the 2004 Games in Athens, when wrestlers competed two periods of three minutes each, with a 30-second break in between.

Weight classes
For men's wrestling at the 2012 Games, there are seven weight classes in freestyle and seven in Greco-Roman. For women's freestyle wrestling, there are four weight classes. In wrestling, there is no "unlimited" weight class. Boxing terms such as flyweight, welterweight and super heavyweight are no longer used in wrestling, although competitors in the 120kg (264.5 lbs) division are often referred to as heavyweights.

Men
In both freestyle and Greco-Roman wrestling, the seven classes are as follows (numbers reflect maximum weights; pound conversions are unofficial):
• 55kg (121 lbs)
• 60kg (132 lbs)
• 66kg (145.5 lbs)
• 74kg (163 lbs)
• 84kg (185 lbs)
• 96kg (211.5 lbs)
• 120kg (264.5 lbs)

Women
The four classes are as follows (numbers reflect maximum weights; pound conversions are unofficial):
• 48kg (105.5 lbs)
• 55kg (121 lbs)
• 63kg (138.5 lbs)
• 72kg (158.5 lbs)