The Cooper's Hill Cheese Rolling and Wake is an annual event held on the Spring Bank Holiday at Cooper's Hill, near Cheltenham and Gloucester in the Cotswolds region of England. It is traditionally by and for the people of Brockworth - the local village, but now people from over the world take part. The event takes its name from the hill on which it occurs.

From the top of the hill a round of Double Gloucester cheese is rolled, and competitors race down the hill after it. The first person over the finish line at the bottom of the hill wins the cheese. In theory, competitors are aiming to catch the cheese, but since it has a one second head start and can reach speeds up to 70 mph (112 km/h, enough to knock over and injure a spectator as it did in 1997), this rarely occurs.

The annual Gloucestershire 'Cheese Rolling and Wake' has been taking place for possibly hundreds of years.

Only two men and three women are known to have won three cheeses in one year (since the 1950s).

It has been summarised as "twenty young men chase a cheese off a cliff and tumble 200 yards to the bottom, where they are scraped up by paramedics and packed off to hospital".

http://en.wikipedia.org/wiki/Cheese_Rolling
http://www.cheese-rolling.co.uk/

The event takes place on Spring Bank holiday (Last Monday in May).

(why is there still no such category "Sport" - "Cheese Rolling"?)