Bracketology: March 11, 2018

Five more automatic bids remain at stake, one of which -- the Big West Conference championship game -- is being presently contested at the time of this writing, for the 2018 NCAA Tournament, whose overall picture is coming closer and clearer into focus with less than 18 hours remaining before Greg Gumbel announces the field of 68 Sunday evening.

The four No. 1 seeds -- Virginia, Villanova, Kansas and Xavier, with Virginia being the No. 1 overall seed -- are all but etched in stone, and the remaining automatic bids will be filled with the higher seed at the moment. Without further ado, here is our attempt at projecting the field:

No. 1 Seeds: Virginia, Villanova, Kansas, Xavier

Last Four In: St. Bonaventure, Saint Mary's, Oklahoma, Arizona State

South Regional
Charlotte: (1) Virginia vs. (16) Texas Southern/North Carolina Central
Charlotte: (8) Butler vs. (9) USC
San Diego: (5) Houston vs. (12) Murray State
San Diego: (4) West Virginia vs. (13) Bucknell
Nashville: (6) Wichita State vs. (11) Baylor
Nashville: (3) Tennessee vs. (14) Montana
Detroit: (7) Arkansas vs. (10) NC State
Detroit: (2) Purdue vs. (15) Lipscomb

West Regional
Detroit: (1) Xavier vs. (16) Cal State Fullerton
Detroit: (8) Rhode Island vs. (9) Virginia Tech
Boise: (5) Arizona vs. (12) New Mexico State
Boise: (4) Gonzaga vs. (13) Marshall
Dallas: (6) TCU vs. (11) St. Bonaventure/(11) Arizona State
Dallas: (3) Auburn vs. (14) Wright State
Nashville: (7) Nevada vs. (10) UCLA
Nashville: (2) Duke vs. (15) Stephen F. Austin

East Regional
Pittsburgh: (1) Villanova vs. (16) UMBC/LIU Brooklyn
Pittsburgh: (8) Missouri vs. (9) Texas
Boise: (5) Clemson vs. (12) San Diego State
Boise: (4) Ohio State vs. (13) South Dakota State
Wichita: (6) Florida vs. (11) Loyola-Chicago
Wichita: (3) Michigan vs. (14) Georgia State
Charlotte: (7) Seton Hall vs. (10) Alabama
Charlotte: (2) North Carolina vs. (15) Iona

Midwest Regional
Wichita: (1) Kansas vs. (16) Radford
Wichita: (8) Creighton vs. (9) Florida State
San Diego: (5) Kentucky vs. (12) Buffalo
San Diego: (4) Texas Tech vs. (13) UNC Greensboro
Dallas: (6) Miami vs. (11) Saint Mary's/(11) Oklahoma
Dallas: (3) Michigan State vs. (14) Charleston
Pittsburgh: (7) Texas A&M vs. (10) Kansas State
Pittsburgh: (2) Cincinnati vs. (15) Harvard