The Legality of Using the Name of a Sporting Event As an App Name

[geprouser]

I wanted to know if I can use the name of a Golf tournament in the name of a mobile app that I'm developing.

The app is a Golf quiz app, can I name the app "US Open Golf Quiz"? Would that be fair use or infringing on a trademark? The name also appear once inside the app as a title but it does not contain the logo as shown here: https://en.wikipedia.org/wiki/U.S._Open_(golf)
It states that it is not affiliated with the organizing body. The app is free and contains ads.

Thank you in advance.

 

[Ohiogal]

I wanted to know if I can use the name of a Golf tournament in the name of a mobile app that I'm developing.

The app is a Golf quiz app, can I name the app "US Open Golf Quiz"? Would that be fair use or infringing on a trademark? The name also appear once inside the app as a title but it does not contain the logo as shown here: https://en.wikipedia.org/wiki/U.S._Open_(golf)
It states that it is not affiliated with the organizing body. The app is free and contains ads.

Thank you in advance.

How badly do you want to be sued?

 

[geprouser]

How badly do you want to be sued?

OK, that was pretty clear.