International Mathematical Modeling Challenge (IMMC)- International Mathematical Modeling Challenge: 2-4 people are required to participate in the competition, and there are two opportunities to participate each year (autumn/winter). Players can choose a competition according to their own time, or they can participate in autumn and winter competitions at the same time, and participate in the overall selection of China District with the best results to advance to the international competition.

The competition is divided into proposition papers and optional papers. The paper must be completed within 96 hours, and the self-selected topic only needs to be completed before the seasonal deadline. Players can use the internet, books, data and other materials during the competition, just mark the reference source. Papers for promotion to international competitions must be completed in English, and the China audition team can complete the papers in Chinese.