That’s enough to qulify for the $2000 gift card, but more you list the better chance you get.
I did list more than 20 items for the last “List and win” event, but I don’t think anybody from here won anything. I listed a whole bunch of things before the July “Sale event”, which was a total waste of time, don’t think I want to list more now. Although, I do have have a new item that I’d add to MP, so that should qualify me for a chance at a $20 gift card 