That does sound right...2 day first round cause then we'd be ahead of the real thing lol.
It's a mess because ITF site writes the tournament finishes on Saturday. On that case it would be one day round on doubles indeed but also on the real tournament.
But there wasn't all 16 matches scheduled so either players will play two round per a day later or the tournament won't finish on Saturday.
Either way it should be two days round on doubles.
Singles is right.