As long as the prize is in Bitcoin, it's allowed on the Games and rounds board.

You can host it in Games & Rounds.

By mentioning 0.001, I guess you pay in bitcoin so it is allowed by that board rules.

Giveaways and games that pay out altcoins do NOT belong here

Thanks for the replies guys, I was thinking to have some lottery/competition in some Football game in a short time.

I don't know how it gonna be or works, but I think it at least work a try!