This article explains the relationship between setting up prizes on the Edit hackathon tab and awarding prizes to winners at the end of the hackathon.
You can define the prizes for your hackathon by navigating to the Edit hackathon tab and then Prizes. To set up additional prizes, simply click Add Prize. If you are including opt-in awards or sponsor prizes, you can select the check box before clicking Save Prize. The prize will be automatically added to your hackathon's submission form and the submission gallery filters.
The image below shows a finished Prizes list with a standard and an opt-in prize defined.
After the submission gallery has been turned on, you will see all the opt-in prizes listed on the the gallery as filter options and this information will be available in the data export: