How people perform tasks and under what circumstances they perform them optimally has been a fascination for humanity for a long time and more particularly whether people perform better or worse under pressure. In this paper, I try to find out whether people perform better or worse when there is pressure. The data used is the free throw percentages for teams of the Swedish basketball leagues “Svenska basketligan” and “Svenska Superettan” for both men and women 2003-2019. I then investigate if the teams perform worse or better when games have a lot of pressure. I use definitions of pressure such as the size of the audience, if the game was close in terms of points and whether it was a playoff game. The findings are that for certain definitions of pressure, such as if the game was close and the size of the audience, players performed worse.