Information

Judging Info

The Fair has three sets of judges:

The Category judges

These judges decide the Fair's own placements (first through third) in each of the 16 categories. Category (Morning) Judging will take place on Wednesday, March 18th , 2026 from 7:30AM –12:00PM.

Grand Awards Judges

These judges decide on the Fair's top awards in Life and Physical Sciences. Grand Awards Judging will take place on Wednesday afternoon, March 18th , 2026 from 1:00pm to 3:00pm.

Special Awards (Registered Professional Societies)

These judges choose among the participants based on specific criteria. Judging Timeline For 2026. Professional Society/Special Awards Judging will take place during the afternoon of Wednesday, March 18th , 2026 from 1:00pm to 3:00pm.

Judging Descriptions

Category Judging

The Greater San Diego Science & Engineering Fair is an exciting and important San Diego community event that relies entirely on the generosity of our community's volunteers. The Fair will usually have about 325 science projects on display along with the 350 plus 6th-12th graders who produced them. Being a judge is actually a lot more fun than it sounds. It mostly requires listening to enthusiastic young kids tell you what they did. For anyone new to judging, there is a great deal of advice regarding how to judge kinds of questions to ask (see judging resources page). Also, judging is done in teams, so there are typically experienced judges to assist someone new, should that need arise. Most of the projects are done by 7th and 8th graders, so you don’t need to be a PhD (although we do appreciate having PhD’s on our judging teams). You do need a background in science, math, computers or engineering and a good knowledge of the scientific method.

Click here to learn more about Category Judging

Grand Award (Formerly Sweepstakes) Judging

These are the very best projects in the Fair. Projects recommended for Grand Award consideration are reviewed by teams of our most experienced judges during the afternoon judging session (7 or more years of experience are required). Four Grand Award and four Runners-up are selected in both Junior (7th - 8th grade) and Senior (9th -12th grade) Division.

Special Awards/Professional Society Judging

Over 40 Professional Societies and other organizations present awards at the GSDSEF. Each provides its own judges and sets its own criteria for awards. In order to participate, one person for the Professional Society must agree to act as a point of contact for the GSDSEF. This person is responsible for recruiting judges for that Professional Society, and reporting their selected winners to the GSDSEF. Awards may be then left with the GSDSEF for distribution directly to students, or the Professional Society may arrange another method to present their awards.

Click here to learn more about Special Awards/Professional Society Judging