Here are all of the first round games, including the First Four:
FIRST FOUR
South: (11) Kansas St. vs. (11) Wake Forest
Midwest: (16) N.C. Central vs. (16) UC Davis
East: (16) Mt. St. Mary's vs. (16) New Orleans
East: (11) Providence vs. (11) USC
SOUTH REGION
(1) North Carolina vs. (16) Texas Southern
(8) Arkansas vs. (9) Seton Hall
(5) Minnesota vs. (12) Middle Tennessee
(4) Butler vs. (13) Winthrop
(6) Cincinnati vs. (11) Kansas St./Wake Forest
(3) UCLA vs. (14) Kent State
(7) Dayton vs. (10) Wichita State
(2) Kentucky vs. (15) Northern Kentucky
EAST REGION
(1) Villanova vs. (16) Mt. St. Mary's/New Orleans
(8) Wisconsin vs. (9) Virginia Tech
(5) Virginia vs. (12) UNC-Wilmington
(4) Florida vs. (13) East Tennessee St.
(6) SMU vs. (11) Providence/USC
(3) Baylor vs. (14) New Mexico St.
(7) South Carolina vs. (10) Marquette
(2) Duke vs. (15) Troy
MIDWEST REGION
(1) Kansas vs. (16) North Carolina Central/UC Davis
(8) Miami vs. (9) Michigan State
(5) Iowa State vs. (12) Nevada
(4) Purdue vs. (13) Vermont
(6) Creighton vs. (11) Rhode Island
(3) Oregon vs. (14) Iona
(7) Michigan vs. (10) Oklahoma State
(2) Louisville vs. (15) Jacksonville State
WEST REGION
(1) Gonzaga vs. (16) South Dakota St.
(8) Northwestern vs. (9) Vanderbilt
(5) Notre Dame vs. (12) Princeton
(4) West Virginia vs. (13) Bucknell
(6) Maryland vs. (11) Xavier
(3) Florida State vs. (14) Florida Gulf Coast
(7) Saint Mary's vs. (10) VCU
(2) Arizona vs. (15) North Dakota