So, it's a little bit of a grey area in terms of being able to play at DraftKings while residing in Portugal. While you may be able to play just fine, you would have no legal backing should anything go wrong.
Authorised games and events\n\n The games and events that can be gambled online in Portugal are chosen by the SRIJ. Sports betting is currently legal, including both pre-match and in-play wagering. The SRIJ keeps a list of sanctioned sporting occasions and contests for which wagering is permitted.