Because I'm a nudge, I emailed an old colleague at one of the PK80 schools.
"I’m not sure if Stony Brook is a part of the event or not. If you were told it is a Nike-sponsored event it is probably the PK80.
Stony Brook can be a part of the PK80 (or any other preseason tournament for that matter) without going to the actual “bracket play” rounds in Portland. Per NCAA rules, each team can play up to four games in these tournaments. So what they do is, have an eight team bracket (3 games guaranteed for each school) and play an on-campus game at the site of the “big school” going to the bracket play and that counts as the fourth game of the tournament, for the big school. The smaller school will play one or two or these “big schools” then and play other smaller schools who did the same thing, so they can get their four games in. It will still technically be a part of the PK80, but will not participate in bracket/elimination play, like the rest of the big schools will in Portland."
UConn has an TBD PK-80 game on November 14. Maybe?