Definition: a year-round global series of professional marathon swims organized by FINA, 10 kilometers in distance, held in countries such as Brazil, United Arab Emirates, Portugal, Canada, Hong Kong, Singapore, China and Mexico. Many of the races are in loop courses that allow for spectators to see the athletes battling with each other throughout the race.
Examples: The top pro swimmers travel the world to participate in the FINA 10KM Marathon Swimming World Cup.
