what is the current law in regards to placing a bet ,let's say at Olympic and using western union for the money transactions. Are there any violations according to US law? I do this for a hobby and don't want to get in trouble,

youre fine man. relax. we dont live in a police state quite yet. although our current president is doing scary things you are still free to enjoy your life. Send less than 10k and everything is fine. You are sending money to a person in another country. that is all you're doing. its hard enough to win at this. Your worry concerning deposits is unwarranted............................