The National Sports Week (known in Bahasa Indonesia as Pekan Olahraga Nasional or PON) consumes a large budget as Indonesia’s largest multi-sports event. This raises the question of whether it is only a sporting event or has an impact on society. Studies related to multi-sports events, specifically in the form of local or small-scale, such as PON, are still limited in Asia. The aim of this study was to investigate six important domains (constructs) of the 20th PON (PON XX) held in Papua in 2021: sports event image, motivation, satisfaction, stadium atmosphere, environment, and perception of the impacts. In addition, this study assessed the correlations between those six constructs and associations between the explanatory variables (gender, distance of residence, and involvement in the sporting event) and those six constructs. A pre-tested questionnaire was used to assess those six constructs and the explanatory variables. We included 675 respondents aged between 17–57 years, with a mean age of 22.87 years in the study. The results showed that the implementation of PON XX was positively received by the community and their highest motivation to watch this event was for entertainment. The involvement of the participant in the event was significantly associated with sports event image, satisfaction, motivation, stadium atmosphere, environment, and the perception of PON impact. The distance of the residence from the venues was only significantly associated with the perceived impact of PON XX on the community while gender had no association with all six constructs. There was a strong correlation between the other five investigated constructs and the perceived impact of PON XX.