I went to a concert that requires you to match your ticket, but allowed you to sell tickets on a site they control for the face value. I think the buyer has to pay a transaction fee as well.
I got the tickets by signing up and they took my credit card, and charged me when I was next in line and someone had tickets for sale. It was pretty neat, though I suspect I lucked out because a bunch of people sold their tickets when they announced vaccines would be required (September 2021).
There was no market place. Just fifo queues of people willing to buy tickets, and tickets for sale. that constantly works its way down to atleast one of them being 0.
I signed up for the main concert and a few of the after parties, and over the next month I got emails saying I had purchased tickets for the various events.
I got the tickets by signing up and they took my credit card, and charged me when I was next in line and someone had tickets for sale. It was pretty neat, though I suspect I lucked out because a bunch of people sold their tickets when they announced vaccines would be required (September 2021).