Most speed skating races are held on an oval course, but there are exceptions. Oval sizes vary; in short track speed skating, the rink must be an oval of 111.12 metres, while long track speed skating uses a similarly standardized 400 m rink. Inline skating rinks are between 125 and 400 metres, though banked tracks can only be 250 metres long. Inline skating can also be held on closed road courses between 400 and 1,000 metres, as well as open-road competitions where starting and finishing lines do not coincide. This is also a feature of outdoor marathons.