| Date | Event |
|---|---|
| 1 Apr 2026 | Challenge opens for registration; training data released |
| 15 May 2026 | Validation phase begins; live public leaderboard goes live |
| 1 Sep 2026 | Deadline for test set submission |
| 7 Sep 2026 | Winners announced; invited speaker notifications sent |
| MICCAI 2026 | Half-day workshop: clinical scenario overviews, top-team presentations, expert panel discussion |
RulesΒΆ
- All participants must form a team. A single-person team is allowed. Each individual may be a member of only one team.
- Anonymous participation is not allowed. Real name and affiliation must be displayed on a verified Grand Challenge profile to appear on any leaderboard.
- Members of organizing institutes may participate but are not eligible for awards and will not appear on the leaderboard.
- This is a code execution challenge. A Docker container must be submitted; direct submission of predictions is not permitted.
- Containers execute in an offline environment with no internet access. All required resources (model weights, libraries) must be bundled inside the container prior to submission.
- External datasets and pretrained models are permitted, provided they are freely and publicly available under a permissive open-source license (e.g., Creative Commons, BSD, MIT, Open Database). Usage must be declared in the algorithm description or accompanying paper.
- Participants using duplicate Grand Challenge profiles will be disqualified.
- Results obtained using CHIMERA-agent data may not be published independently until after the 12-month embargo period following the official workshop date. See Publication and Awards for details.
- The organizers reserve the right to disqualify participants at any point for unfair or dishonest practices.
- The competition is open worldwide, except for residents of North Korea, Crimea, or any region covered by applicable EU financial or goods sanctions.