Great stuff Rhyminsimon!!
44 teams out of 128 left are in D2 or NBBA
5 games on Tuesday have D2 vs D2 or NBBA vs NBBA
so at least 5 of the 44 will be knocked out.
That means in the next round it's likely that 39 (assuming no upsets) of the 64 teams left will be D2 or NBBA teams.