If we are still submiting why are best two locked can't be changed ? what's the purpose of submitting for the next 7 days ? So is selecting best two a wrong choice ?

Leaderboard and Evaluation Updates

The challenge will open on 12 June 2026 and remain open for submissions for 7 days.

Participants may update their submissions at any time before the submission deadline. However, this is a closed-data challenge, and participants may only use information contained within the provided dataset. The use of match results, statistics, betting odds, rankings, or any other information generated during FIFA World Cup 2026 is strictly prohibited.