Intel Extreme Masters Season 12 – Oakland

Intel Extreme Masters Season 12 – Oakland (IEM Oakland 2017 for short) was an esports event in Oakland, United States in November 2017. It was hosted by ESL as a part of Intel Extreme Masters Season 12. The event consist of two First-person shooter tournaments, Counter-Strike: Global Offensive and PlayerUnknown's Battlegrounds, and involved many invited and qualified teams from different regions of the world.

The main event of the tournament took take place at the Oracle Arena in Oakland, California, United States. It is a multipurpose arena known as the home tenant of NBA team Golden State Warriors, with total capacity around 20,000. It is the second time for Oracle Arena to host the event, after it previously hosted the IEM Oakland 2016.

The group matches were held in Intel Esports Arena in Burbank, California between November 15-16, 2017 and used round robin format, while the playoffs in Oakland used single elimination format with 2 allocated byes for each group winners in the quarterfinals. 12 participating teams were divided between 2 groups of six. All group matches are played with best-of-one format, while playoffs and grand finals are best-of-three and best-of-five respectively. Group standings are determined by points and rounds won-lost difference. A win in normal time resulted 3 points, while a win in overtime resulted in 2 points, also a loss in overtime resulted in 1 point. Each group winners went straight to semifinals, while first and second group runners-up faced each other in quarterfinals.