After 60 days, a .com can't be renewed at all, and it will be delete 5 days later.
So, it takes 65 days before the domain is available again for registration.
However, there are sometimes some Bots which register it just seconds after they are available, to resell it.
You can use a backorder service, but my advice is to do it just a few minutes (or at least not more than a few hours) before, to avoid auctions on this domain.
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