The United States Invitational Young Physicists Tournament (USIYPT) is an annual physics research and debate tournament for high school students, held the last weekend in January. School-based teams of four students investigate several undergraduate-level research problems in preparation for the tournament. The competition itself consists of "physics fights," student-led debates over the quality of each team's solution. Teams are judged on their own solutions to the problems and on their ability to engage in evaluation and discussion of other teams' solutions. The Harker School of California, Phillips Exeter Academy of New Hampshire, and Rye Country Day School of New York are in a three-way tie for the most championships, with each school having won three times. The 2024 tournament was hosted on February 3–4, 2024, at North Carolina State University, with Rye Country Day School winning the champion title for the first time in seven years.