Great question! @woods30
When submitting multiple domains, creatives should keep in mind that this feature is most useful when submitting name options with minor variations. If an option name is very different from the first name entered, we suggest submitting it as a separate entry.
If a multiple domain entry is selected as a winner in a contest, only the company name is displayed on the winner board (not the winning domain that was submitted with it). But if you go to the contest page, the winning name and domain are displayed there together. The first domain that was entered in the entry is the domain that will be displayed.
Here is a current example of the name "MarketMakers" that has won and submitted entries with multiple domain options (these are not the examples that were actually used in this contest):
Another way to use the multiple domain feature would be to submit the same domain name but with a few extension options. Hope this helps!