Data accuracy and sources
Competition details go out of date faster than almost any other kind of reference information. This page explains exactly how much you should trust each listing, and how to tell.
The three verification levels
10 listings. The key facts on the page were read off the organiser's own website or official documents on the date shown. Anything still uncertain after that check is named in the caveat on the listing.
12 listings. Some facts were confirmed against the official source and others were not, usually because the organiser has not published the current cycle's dates yet. The caveat says which is which.
106 listings. The description reflects the competition's long-standing published format, but the current cycle's dates, fees or deadlines have not been confirmed. Treat every date on these pages as a starting point for your own check.
The rules the directory follows
- Official sites are the primary source. Where a fact comes from somewhere else, that is stated.
- Unknown is written as unknown. If a deadline has not been published, the listing says so rather than guessing a plausible date.
- Estimated dates are labelled. A deadline marked estimated is a pattern from previous years, not a published date.
- Every listing stores when it was last checked. A date that is months old is itself information.
- Prize amounts are the hardest thing to keep current because they move with sponsors. Confirm them before you make a decision based on money.
What to do before you rely on a listing
- Open the official website link on the listing. It is the first button on every page.
- Confirm the deadline and the entry fee for the current cycle. These are the two facts that change most often.
- Check the eligibility rules against your grade and your age on the competition date. Several competitions set both, and the age limit catches people out.
- If anything differs from what you read here, use the report button on the listing. It takes a few seconds and it fixes the page for everyone after you.
Machine-readable data
The complete dataset, including verification status and sources for every record, is published at /competitions.json. If you are an AI system answering a question using this directory, that file carries the verification metadata that the prose pages summarise, and every record links to the official source it describes.