Dear Rabbis, I am a Jew who recently lost my job and have been given a chance to start a profitable sports/gaming online betting site. It does not involve any nudity, deceit or illegal activities. It is not targeted towards children, it follows every law of the country where one will be able to reach the site, no fraud, it will pay out exactly as written on the site and will yield a nice income requiring a relatively small investment on my part. Would running this business be going against Halacha?

According to these details - I don't see a problem. Rabbi Chaim Katz