- any freestyle event over 1500 meters, normally conducted in a natural body of water, such as a lake, river or ocean
- also known as marathon swimming
5905 West 74th Street | Indianapolis, IN 46278 USA | [email protected] | (800) 336-8828 | +1 317-290-8828
Strictly Necessary Cookie should be enabled at all times so that we can save your preferences for cookie settings.
If you disable this cookie, we will not be able to save your preferences. This means that every time you visit this website you will need to enable or disable cookies again.