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  • Results obtained using CHIMERA-agent data may not be published independently until after the 12-month embargo period following the official workshop date.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.