Welcome to the official website of Yale Undergraduate Science Olympiad, widely known as YUSO.

Founded in 2013, the group is composed mostly of Yale undergraduates. We are committed to serving the high school science community by bringing students a high-quality university-sponsored competition, the first of its kind in the nation. Our annual invitationals welcome over 1100 students, parents and teachers on campus for a delirious daylong affair, showcasing students' talents in biology, chemistry, physics, and the engineering sciences. Join us for our next one by following the links above!


January 26, 2019
Full results for the 2018-2019 Yale Invitational can be found below. Please click the image below for a clearer PDF version of the results. Many thanks once again to all...
January 27, 2018
Full results for the 2018 Invitational have been posted! Please click the image for a full, printable PDF version. Thank you to all the teams for their enthusiasm and for...
February 1, 2017
Score spreadsheets have been updated! Please click the image for a clearer, printable PDF.