MANILA, Philippines—Elite ultra triathletes from the United States, Britain, Switzerland and nine other countries will challenge their Filipino counterparts in the first Asian O3 Long Distance Triathlon at the Subic Bay Freeport on Aug. 2.

Participants will test their skills to the limit in the 4-kilometer swim, 120-km bike and 30-km run event—thrice the Olympic distance of 1.5 km swim, 40 km bike and 10 km run.

Other entries will come from the Czech Republic, France, Ireland, Canada, Australia, New Zealand, Singapore, Chinese Taipei and Hong Kong.

The event is the fourth foray of the Triathlon Association of the Philippines in hosting continental races after the Asian Triathlon Championship, Asian Duathlon Championship and Asian Aquathlon Championship.

Trap president and Asian Triathlon Confederation senior vice president Tom Carrasco said they expect the first finisher to cross the tape in six hours and 45 minutes to seven hours.

“However, we will close shop 12 hours from the start or just before dusk sets in,” Carrasco said.

The championship in a standard triathlon will also be disputed. It will be part of the evaluation process of the members of the national team and national pool eyeing tickets to the 1st Asian Bali Beach Games and to various legs of the Asia Cup series.

Apart from individual overall and age-group competitions, team (four triathletes with best three times to count) and relay contests are likewise on tap.

Also at stake are prizes for the fastest in swimming, fastest in cycling and fastest in running. The contenders need to land in the upper half of the finish list to qualify for the special awards.