The race, which would see the triathletes cover 70.3 miles, would start at the Galle Face Green on February 25, starting off with a 1.9km swim, followed by 90km of cycling, and a 21.1km running course.
The Ironman 70.3 Colombo international triathlon and exhibition is set to generate US$ 3 million in tourism earnings for the country and haul in high net worth influencers, the event organizers said.
According to organisers, 880 racers would take part in Ironman 70.3 Colombo, organisers added.
Over 500 volunteers, 300 police officers and Sri Lanka Navy assets would be deployed to ensure the safety of the triathletes.
The top six foreign participants for Ironman 70.3 Colombo are 133 triathletes from India, 76 triathletes from the UK, 47 triathletes from France, 34 triathletes from Australia, 30 triathletes from USA and 26 triathletes from Singapore. Triathletes would also arrive from as far away as Brazil and Argentina.
Local triathletes comprise of 26 percent of the total racers and includes visually impaired and a member of the indigenous member of the Vedda community.