Ok, I'll ask again.....which betting service??

[SlewsMyHero]

Depending on where you are in Maryland, you could open up an account with Penn National(www.ebetusa.com). They have an OTB in York, which is just about an hour from Pimlico. I lived in Baltimore for a couple of years and had a phone account with them. I don't know what the laws are for now as far as out-of-state accounts.