Question: In what year did the Chickasaw Nation open Win Star World Casino just 100 miles away from Chisholm Trail Casino?
Sentence (from "WinStar World Casino"): The casino opened as the WinStar Casino in 2004, and was expanded (with a 395-room hotel tower) and renamed the WinStar World Casino in 2009, with its 519000 sqft of casino floor making it the largest casino in the state of Oklahoma.
Relevant evidence: Yes