This talk explores cultural differences in implicit belief in sport abilities between Westerners and East Asians. Henrich et al. (2010) highlight that research participants in major journals come from WEIRD societies (Western, Educated, Industrialized, Rich, Democratic), raising concerns about applying their findings to other cultures, and sport psychology is no exception to it (Dorsch et al., 2023). However, empirical evidence is lacking for cultural variations in sports psychology. Thus, the presenter will introduce his own research and how culture affects individuals’ psychological processes in sports contexts. The presenter concludes that cultural contexts and practices shape psychological processes and calls for the development of culturally grounded, evidence-based practices