“2018 World Challenge Day”, which was organized jointly by the Sports Bureau and the Civic and Municipal Affairs Bureau and was co-organized by the Health Bureau, took place on the May 30. It encouraged all residents to do physical exercises continuously for 15 minutes. Supported by different government sectors, institutions, companies, community associations and people from different fields in the society, the event had a total of 263,353 participants.  The total number of participants constituted 40.32% of Macao's total population, which leads to Macao being the winner of the World Challenge Day again.

The competing city this year was Mixco, Guatemala. According to the data from the Association For International Sport for All, the population there is 501,000. On that day, a total of 11,211 people declared that they had completed physical exercise for 15 minutes continuously, occupying 2.24% of the total population.

Through the World Challenge Day, the organizers hoped to convey the message  that physical exercise brings about physical and mental benefits, and encourage residents to do exercise constantly and enjoy the fun of sports.