FYI Below is what the B1G rounds might look like within each Session, based on my notes from 2019 in Minneapolis. Here is what I wrote down during the 2019 B1Gs, Session by Session:
Saturday
Session 1 =
winner's bracket: preliminaries, quarterfinals
loser's bracket: prelim WBs, 1st round WBs
Session 2 =
winner's bracket: semifinals
loser's bracket: 2nd round WBs, consolation quarterfinals
Sunday
Session 3 =
winner's bracket: N/A
loser's bracket: consolation semifinals and 7th place matches
Session 4 =
winner's bracket: Finals
loser's bracket: 3rd and 5th place matches
Sorry if the terminology isn't exactly correct, but this is the gist.
Saturday
Session 1 =
winner's bracket: preliminaries, quarterfinals
loser's bracket: prelim WBs, 1st round WBs
Session 2 =
winner's bracket: semifinals
loser's bracket: 2nd round WBs, consolation quarterfinals
Sunday
Session 3 =
winner's bracket: N/A
loser's bracket: consolation semifinals and 7th place matches
Session 4 =
winner's bracket: Finals
loser's bracket: 3rd and 5th place matches
Sorry if the terminology isn't exactly correct, but this is the gist.