Class of 72
Active member
22 of 33 D1 conferences do not have a single ranked team. All get automatic bids, no? The top 25 is a lock. So right now 47 seven schools are a lock to get in (conference winners plus top 25). Everyone else is competing for 19 remaining at large bids (including play in game). That's what makes it so tough to earn an at large if you are on the bubble.
Most of the conference winners will be part of that top 25. There are likely over 30 at large bids barring major conference upsets.