How can ticket scalpers sell seats before tickets go on sale to the public?

I was planning on trying to get tickets to Garth Brooks tomorrow morning. I went to a site that I thought was a Ticketmaster site. As it turns out it was a ticket scalper site. On this site I could purchase tickets before they go on sale to the public in the morning. I can purchase the exact seat, row, section that I want right now, before tickets go on sale to the public at 10:00 AM July 24th. Of course I would not get the physical tickets until after they go on sale to the public on Friday. I checked around other sites and found the same thing. This is not right! How can the scalpers sell tickets that they do not have unless there is some kind of shady business going on? Tickets should be available to the general public not the scalpers first. I certainly would appreciate a response if anyone understands how this is happening. What can I do about it. It seems like a class action suit could be filed against Ticketmaster, right?

Thank you,

Go to the promoters, just like the “ticket scalpers” did and offer them way more than face value for the tickets. You can probably get them early too. Well, probably not since you don’t have a contract with them and this would probably breech other contracts currently in force, but this is all that’s happening. These ticket services are getting a handful of tickets and the rest go to Ticketmaster.

Also, what would this have to do with Ticketmaster?

Another thing, are these legit businesses or actual scalpers as you’re calling them? There’s plenty of businesses that buy tickets and resell them for much higher prices (and there are very strict laws that vary wildly from state to state that say how much over face value they can sell them for). It wouldn’t surprise me if these businesses get a handful of tickets off the top for some shows instead of being forced to buy them on their own. Especially if the concert promoter/venue/TM doesn’t think the they’re going to sell out.