This is a 'scorecard' by conference for 2019, the 21-st for the 64-team playoff system where every conference gets an automatic bid. You can find the full results elsewhere.
My original motivation for this summary was the thought that the regionals are a major source of inter-conference and inter-region play that helps one evaluate the relative strength and (possibly) future selection or seedings of teams from various regions and conferences. I think it still serves that purpose.
Current status: Super Regionals are complete.
Here is the 'histogram' of the success rate for the 2019 NCAA regionals.
I tally a Regional champion under "win" and the Super-Regional champion (the team that goes to the CWS) under "champ" so the "champ" column is unchanged from the previous 48-team system.
Notes:
There are no changes in the conference lineup.
There are still 31 conferences, each with an automatic bid,
so 33 of the 64 teams are selected at large.
The * below indicates that the conference was
guaranteed a slot in the CWS because both teams in a particular Super Regional
were from the same conference. In both cases, this was a result of putting
two top seeded teams (8-9 in Regions 8 and 8a, and 5-12 in Regions 5 and 5a)
in the same Regional pairings when the brackets were established.
------ wins ------
Conference Number 0 1 2+ win champ comments
========== ====== === === === === ===== -----------------
SEC 10 1 3 6 4* 3/10 to CWS in 2018
ACC 8 1 1 2 4 2 1/6 to CWS in 2018
Big 12 5 2 1 2 1* 2/5 to CWS in 2018
Big Ten 5 1 3 1 1 won a regional in 2018
Pac-12 5 2 1 2 2/4 to CWS in 2018
Mo Valley 3 3 3/3 on first day, won region in 2017
American 3 1 1 1 Won a regional in 2016 and 2015
Conf USA 2 1 1 Upset overall N1 seed in 2018
West Coast AC 1 1 Won a regional in 2014
Mountain West 1 1 Had an upset win in 2017
Ohio Valley 1 1 Won regional over N4 seed in 2018
Big East 1 1 Eliminated 1 seed (N16); also upset win in 2017
Big South 1 1 Went to CWS in 2016
Atlantic Sun 1 1 Won a regional in 2018 and 2018
MAC 1 1 Upset Miami in 2019, was in CWS in 2012
Northeast 1 1 Last win was in 2013
SunBelt 1 1 Won a regional in 2014 and 2015
WAC 1 1 upset win in 2019; shadow of its former self
Metro Atlantic 1 1 Last regional win was in 2014
Big West 1 1 Knocked out N2 seed in 2018
Southern 1 1 upset Florida State in 2018 and 2014
Patriot 1 1 Beat a 1 seed (N16) in 2018
Southland 1 1 Won region in 2017
Colonial 1 1 did well in 2016, won 2014 region over N seed
Atlantic-10 1 1 Won region in 2017 (also in 2015)
MEAC 1 1 Beat national seed in 2017, wins in 2014, 2002
Ivy 1 1 beat a Big Ten team in 2017
Summit 1 1 Had an upset win in 2017
Horizon 1 1 Won two games in 2016
America East 1 1 Won a game in 2015 and went to CWS in 2012
SWAC 1 1 Upset national seed in 2014
independent 0 - none
Effect of format update made in 2018:
Although it has no effect on the organization of the table shown here,
there was a significant change in the playoff format that marks a final
break with a long-standing tradition in tournament seeding that will
affect these stats.
The NCAA seeded teams from 1 to 16,
and paired up the regionals so that 1 plays 16, 2 plays 15, ..., and 8 plays 9 in
the respective Super Regionals.
This now mirrors what has been done in Basketball "forever".
Although not publicized, this led to a significant change
in who a conference team might face in a Super Regional.
Until 2018, it was forbidden to seed two teams from the same conference so they
would be "expected" to meet in the same Super Regional, but that is no longer the case.
There are multiple instances in 2019 where the top seeds in a Super Regional pair
are from the same conference. There are two regional pairs with SEC teams at the top,
plus one each for the Pac-12, ACC, and Big 12 conferences.