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This study aimed to gather information about game situations where headers in high-performance football were performed and to characterise how headers were executed in different game situations. A multidimensional observational system was designed to characterise the header situation and technical execution. A sample of 920 headers were randomly collected from the English Premier League 2017–2018 season, using InStat Scout® website platform. Frequency analysis of headers showed that (1) most led to ball losses; (2) almost half was performed during set plays, especially in goal kicks and throw-ins; (3) a substantial amount was executed to prevent spatial progress of opponents when employing direct attacks with long passes. Chi-square analyses revealed significant associations (p < 0.05) between the following variables: header purpose and player position (large effect size – ES), movement and …