From the event dashboard, click on content from the sidebar.

Click on the "Engagement" feature page. This will list all engagement items, including published caption contests.

Find the published caption contest you want to view the responses for and click on “Responses” on the caption contest card. 

This will take you to the caption contest responses page. To export all the responses for the caption contest , click on the download icon on the top right. 

How to view and export responses to your caption contest?