It's that time of the year. The college softball postseason has arrived and 64 teams are on the road to Oklahoma City. 

The top 16 teams were seeded nationally and will play at campus sites, beginning on Thursday. 

According to the NCAA, team pairings were determined by geographic proximity, with the exception that teams from the same conference were not paired during regional competition.

NCAA REGIONALS

Host teams are in bold

Eugene

1 Oregon 47-7

Albany 32-14

BYU 35-20

Drake 43-10

Lexington

Michigan 43-11

Notre Dame 32-21

Illinois-Chicago 33-19

16 Kentucky 31-19

Columbia

9 South Carolina 45-14

UNCG 46-11

Liberty 47-12

Hofstra 40-12

Tempe

Long Beach St. 42-12

Ole Miss 30-23

New Mexico St. 29-22

8 Arizona St. 43-11

Seattle

5 Washington 44-8

Boise St. 40-14

Texas 32-24

Minnesota 39-15

Tuscaloosa

Oregon St. 28-26

Wisconsin 28-21

Middle Tennessee 39-40

12 Alabama 33-18

Fayetteville

13 Arkansas 39-15

DePaul 35-15

Wichita St. 30-21

Oklahoma St. 38-20

Norman

Missouri 28-27

Tulsa 33-23

Boston 39-18

4 Oklahoma 50-3

Los Angeles

3 UCLA 50-4

Sacramento St. 31-18

Cal St. Fullerton 33-23

Texas St. 42-14

Tucson

Mississippi St. 36-21

North Dakota St. 33-17

Saint Francis (PA) 39-17

14 Arizona 40-14

Baton Rouge

11 LSU 41-14

Fordham 33-21

Houston 36-20

Louisiana 38-14

Tallahassee 

Auburn 40-15

Kennesaw St. 39-15

Jacksonville St. 33-23

6 Florida St. 47-10

Athens

7 Georgia 43-11

Harvard 23-16

Northwestern 36-17

California 34-19

Knoxville

James Madison 42-12

Ohio 38-15

Monmouth 32-14

10 Tennessee 45-12

College Station

15 Texas A&M 40-16

Prairie View 20-21

McNeese 40-19

Baylor 36-16

Gainesville

Ohio St. 34-14

South Florida 38-21

Bethune-Cookman 31-24

2 Florida 50-8