Judging for the 2026 Greater San Diego Science and Engineering Fair will take place in person at the Balboa Park Activity Center on Wednesday, March 18, 2026. You can support the Fair and the students by volunteering as a judge. To register as a judge, please click here to access zFairs. While we are planning on in-person judging, early virtual previews of student projects will still be available in zFairs. Learning videos will be available to help you navigate through zFairs. With your help as a judge, we will make the 2026 GSDSEF as successful as all the previous 71 Fairs!
For 2026 we will continue with these categories and descriptions which were introduced in 2022. Please view the GSDSEF Categories below for for descriptions, and note that each category name is hyperlinked to a category-specific judging guide.
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