Every year in Edirne, Turkey an oiled wrestling tournament called Kirkpinar takes place. It's been held since 1360 and attracts contestents internationally. The contestants wear only leather knee-length trousers. Before each bout, the wrestlers pour olive oil over their entire bodies. The matches take place in an open, grassy field. A contestant wins when he pins his opponent to the ground or lifts him above his head.
Kirkpinar holds the Guinness World Record for the longest-running athletic competition.