The International Young Physicists' Tournament (IYPT) is the international counterpart to the SYPT. In contrast to the SYPT, students from all over the world participate. The format is the same: Three teams (each consisting of 5 students) compete against each other in so called Physics Fights. They take turns presenting and defending their solution to a given problem, criticizing the solution of the opposing team and reviewing the performance of the two preceding teams. The performance of all three teams is assessed by a jury. The teams have to try to convince both their opponents as well as the jury of the quality of their scientific work and results and of the understanding of physics.
In five rounds the best three teams are selected; in the final they "fight" for the IYPT cup. The whole tournament is accompanied by an extensive social program and usually lasts eight days.