The four kinds of conflict worth collecting

Fair networks ask affiliated fairs to have procedures that remove potential conflicts of interest, and one large regional fair's judging guide asks judges who discover a conflict at preview time to report it to the desk before interviews start. Both are listed below. In practice four kinds cover almost everything:

Worked example: the conflicts in the sample fair

The sample fair in the judge assigner has 16 declared conflicts across its judges, counting each judge's own school once. Between them they rule out 57 of the 432 possible judge and project pairs. Dana Ortiz teaches at a school with nine entries, so the own school rule takes 9 projects off her list. Owen Fraser named one school, which also rules out 9. Helen Adeyemi named one student by initials, which rules out exactly 1 project.

The assigner still filled 108 of 108 seats, and the conflict audit sheet reports 0 visits that break a declared conflict. When a coordinator drags Dana onto one of her own school's projects, the move is allowed but flagged at once, with the message "Dana Ortiz has a conflict with P101: own school." and the same line on the audit sheet, until it is moved back or the flag is accepted on purpose.

Collecting conflicts without collecting too much

Ask for the school or employer, the schools they must not judge, any project codes they are connected to once projects are published, and the initials of any entrant they know. Do not ask for student names or for the nature of a relationship: the rule only needs to know that a conflict exists. Everything stays on the coordinator's computer; nothing is uploaded.

Showing that every conflict was kept

The conflict audit sheet lists each judge, the conflicts they declared, how many projects those conflicts rule out, and any visit that breaks one. Print it for the fair director or keep it with the results. It is also the fastest answer to a parent who asks whether the judge on their child's project knew the family.

Common mistakes

When a conflict turns up at the table

It will happen. Have the judge move on without scoring, tell the desk, and in the assigner remove that visit, lock what has already happened and rebalance. The empty seat goes to a judge who is free, has room under their maximum and has no conflict with the project, and anything still unfilled is listed with the reason. See the step by step assignment guide for the rest of the day.

Sources

Frequently asked questions

What counts as a conflict of interest for a science fair judge?

Anything that would make a reasonable entrant doubt the judge's independence: judging a project from the school where they teach or their child studies, a project they mentored, or a student they know or are related to. Your fair's own rules decide the exact list.

Should judges declare conflicts before the fair or on the day?

Before, on the volunteer form, so the schedule can avoid them. Keep a way to report one on the day too: judges often recognise a student only at the table, and the desk can then swap them.

Is a teacher allowed to judge at a fair their school enters?

Usually yes, as long as they never judge their own school's projects. Turn on the own school rule and the assigner keeps them away from every project their school entered.

Can the tool find conflicts nobody declared?

No. It keeps the conflicts you enter and nothing else. The conflict audit says so on the page, so nobody mistakes it for a background check.

More guides

Last reviewed 27 September 2026. Judgegrid is not affiliated with any science fair, science fair organisation, competition, hackathon, school, school district or judging software company.