This is a 'scorecard' by conference for 2017, the 19-th 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:
Regionals complete. Super Regionals in progress.
Updates will be slow this year.
Here is the 'histogram' of the success rate for the 2017 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 older 48-team system.
Note:
There are no changes in the conference lineup this year, which still has 31 conferences,
all with automatic bids (so 31 of 64 are automatic qualifiers).
One notable change is that Maryland left the ACC for the Big Ten, which has 13 of its 14
teams playing baseball and is now competitive on the national stage.
------ wins ------
Conference Number 0 1 2+ win champ comments
========== ====== === === === === ===== -----------------
SEC 8 2 3 3 deserved to have half of teams in
ACC 7 1 3 1 2 good, only 1/10 went to CWS last year
Big 12 7 2 1 3 1 fair, 3/3 went to CWS last year
Big Ten 5 2 3 upset 1 seed Houston, but not Big 13
Pac-12 4 1 1 1 1 fair, 1/4 to CWS last year
American 3 1 1 1 regional win last two years
Big West 2 1 1 more? Team in CWS in both 2014 and 2015
Mo-Valley 2 1 1 beat 1 seed, last regional win in 2015
Southland 2 1 1 beat N1 seed Texas Tech twice to win region
Conf USA 2 2 terrible start last year
Big East 2 1 1 knocked out Oklahoma, but not many left
Atlantic-10 1 1 upset N1 seed to win region (also in 2015)
MEAC 1 1 beat N1 Florida, Regional wins in 2014, 2002
Ivy 1 1 beat a Big Ten team
Atlantic Sun 1 1 won a regional in 2014
Ohio Valley 1 1 upset 1 seed FSU
SunBelt 1 1 won a regional in 2014 and 2015
West Coast AC 1 1 won a regional in 2014
Mountain West 1 1 knocked out UCLA of Pac-12
Southern 1 1 Upset national seed in 2014
Patriot 1 1 eliminates Big Ten team
Summit 1 1 knocked out Okla St of Big 12
Big South 1 1 ... 1/1 to CWS last year
Colonial 1 1 did well in 2016, won 2014 region over N seed
Horizon 1 1 won two games in 2016
America East 1 1 won a game in 2015 and to CWS in 2012
WAC 1 1 shadow of its former self
SWAC 1 1 Upset national seed in 2014
Metro Atlantic 1 1 Last regional win was in 2014
Northeast 1 1 last win was in 2013
MAC 1 1 BBQ now but CWS in 2012
independent 0 - now just NY Tech