Often called the World Cup of physics, IYPT has run since 1988, and the 40th edition takes place in Auckland, New Zealand on 5–12 July 2027 (the 39th concluded in Zurich in August 2026).
Its format is what sets it apart: each July the IOC releases 17 open-ended problems for the following year — the 2027 set was approved on 14 July 2026 — and national teams spend most of a year designing experiments, modeling and analysing data.
There is no written exam on site; instead teams meet in successive Physics Fights, rotating through Reporter, Opponent and Reviewer roles while international juries score research depth, experimental rigour and the quality of the defence.
Teams are three to five secondary students, university enrollees are excluded, and entry must go through a country’s recognised member organisation rather than individual registration. The United States is listed with the member organisation US IYPT (IOC member Elia Eschenazi, recognition valid through 2029).
Running alongside it is USIYPT, the invitational school tournament organised by USAYPT on the last weekend of January — 30–31 January 2027 at Caltech — built on just four problems, with teams of three or four students from one school plus a faculty coach. Note that USAYPT does not describe USIYPT as a U.S. national selection event, so families should confirm directly with US IYPT or USAYPT whether and how a U.S.
team is being sent in a given year.







