A comparative examination of World Cup Champions of European and American origin of national football players in terms of "relative age effect"

This study aimed to analysis the birth date distributions of champion players between years 1930-2022 determine whether FIFA World Cup national team football were affected by "Relative Age Effect" phenomenon. The universe research consisted teams that champions in Finals. samples player group won championship. model was determined as "Basic Qualitative Research". data collection technique "Document Analysis". made according Miles & Huberman model, which is a descriptive form. In study, information athletes detailed looking at squad structure for 1930-2022. highest level professional football, it has been seen are numerically close each other terms "relative age effect". As result, observed relative effect senior decreases with increasing age. It shown elite changed negatively due high number born second half year. this case, not negative situation who transition professionalism and reach level, being last months Looking intercontinental comparison, even considering different culture structure, revealed late-born have caught up their peers left them behind.