Challenge Timeline

May 23
2026

Website Released

Official CUHK-X Challenge website goes live with full timeline, track details, and dataset overview.

Jun 20
2026

Competition Launch

Both Kaggle competitions open for registration and submissions. Dataset publicly released. Promotion channels go live simultaneously.

Sep 15
2026

Kaggle Leaderboard Freeze

Public submissions close. Top 15 teams per track on the Kaggle private leaderboard are notified and invited to the verification and evaluation stage.

Sep 18
2026

Verification Package Due

Top 15 teams per track submit their verification package by 23:59 UTC.

Sep 19–30
2026

Verification & Evaluation

The Organizing Committee reproduces each solution from the submitted code, model artifacts, configuration, and setup instructions to verify successful execution and consistency with the selected Kaggle submission. The organizer-run private-data evaluation also takes place during this period.

Oct 1
2026

Final Top 6 Announced

Top 6 teams per track passing verification are officially invited to the Grand Finals. Technical reports from formally invited teams are due at 23:59 UTC on October 1.

Oct 12
2026

Grand Finals · Shanghai

Finalist presentations (5 minutes + 5 minutes Q&A per team, in English) and the awards ceremonies. No additional on-site private-test inference. Teams unable to travel may participate via Zoom.