Well, since 2002.
For those of you with a subscription to the Athletic, Pomeroy analyzed the at-large selections for every tournament since 2002. The complete post is worth a look. He took the five worst teams in each field according to his ratings and ranked each season based on the group’s average adjusted efficiency margin.
His lesson from the exercise is "that there really isn’t much difference in the quality of the bubble from one year to the next. And no matter how weak the back of the field appears to be, the last teams to get in are far from pushovers, as the long-term success of 12-seeds against 5-seeds attests. Since the tournament expanded to 64 teams in 1985, just four times has a 12-seed failed to win a game. And going back to 2002, about one-third of the 12-seeds have been at-large teams."
The weakest bubble since 2002:
3. 2002
2. 2005
1. 2012
The strongest back ends of the field:
3. 2017 (HEY!! What do you know!! Look at that!)
2. 2015
1. 2010
Discuss amongst yourselves.
For those of you with a subscription to the Athletic, Pomeroy analyzed the at-large selections for every tournament since 2002. The complete post is worth a look. He took the five worst teams in each field according to his ratings and ranked each season based on the group’s average adjusted efficiency margin.
His lesson from the exercise is "that there really isn’t much difference in the quality of the bubble from one year to the next. And no matter how weak the back of the field appears to be, the last teams to get in are far from pushovers, as the long-term success of 12-seeds against 5-seeds attests. Since the tournament expanded to 64 teams in 1985, just four times has a 12-seed failed to win a game. And going back to 2002, about one-third of the 12-seeds have been at-large teams."
The weakest bubble since 2002:
3. 2002
2. 2005
1. 2012
The strongest back ends of the field:
3. 2017 (HEY!! What do you know!! Look at that!)
2. 2015
1. 2010
Discuss amongst yourselves.