Norman Regional – May 17-19 at Norman, Okla.
No. 1 seed Oklahoma* (47-4) vs. Marist (30-24)
Fordham (35-21) vs. Arkansas (34-18)
College Station Regional – May 17-19 at College Station, Texas
Baylor (39-15) vs. Arizona (32-24)
Penn (30-18) vs. No. 16 seed Texas A&M* (39-15)
Baton Rouge Regional – May 17-19 at Baton Rouge, La.
No. 9 seed LSU* (40-14) vs. Central Connecticut State (35-13)
Northwestern State (40-13) vs. Louisiana-Lafayette (43-13)
Ann Arbor Regional – May 17-19 at Ann Arbor, Mich.
California (36-17) vs. Central Michigan (33-18)
Valparaiso (34-25) vs. No. 8 seed Michigan* (45-10)
Tempe Regional – May 17-19 at Tempe, Ariz.
No. 5 seed Arizona State* (45-10) vs. San Jose State (42-15)
Georgia (38-19) vs. San Diego State (35-18)
Lexington Regional – May 17-19 at Lexington, Ky.
Notre Dame (43-13) vs. Virginia Tech (35-19)
Marshall (35-20) vs. No. 12 seed Kentucky* (38-18)
Mobile Regional – May 17-19 at Mobile, Ala.
No. 13 seed South Alabama* (45-7) vs. Mississippi Valley (24-26)
Mississippi State (32-22) vs. Florida State (41-16)
Austin Regional – May 17-19 at Austin, Texas
Houston (40-18) vs. South Carolina (32-23)
Army (35-24) vs. No 4 seed Texas* (44-8)
Eugene Regional – May 16-18 at Eugene, Ore.
No. 3 seed Oregon* (46-9) vs. BYU (33-20)
North Carolina (39-19) vs. Wisconsin (42-11)
Lincoln Regional – May 17-19 at Lincoln, Neb.
Stanford (37-19) vs. Tulsa (42-14)
UNI (26-24) vs. No. 14 seed Nebraska* (40-13)
Washington Regional – May 17-19 at Seattle, Wash.
No. 11 seed Washington (38-15) vs. Portland State (25-29)
Minnesota (35-17) vs. Hawaii (43-11)
Columbia Regional – May 17-19 at Columbia, Mo.
Hofstra (43-11) vs. Oregon State (33-22)
Stony Brook (35-23) vs. No. 6 seed Missouri* (35-11)
Knoxville Regional – May 17-19 at Knoxville, Tenn.
No. 7 seed Tennessee* (44-10) vs. Longwood (35-17)
James Madison (41-15) vs. North Carolina State (33-18)
Tuscaloosa Regional – May 17-19 at Tuscaloosa, Ala.
Western Kentucky (41-16) vs. S.C. Upstate (41-10)
Jacksonville State (30-25) vs. No. 10 seed Alabama* (42-13)
Louisville Regional – May 17-19 at Louisville, Ky.
No. 15 seed Louisville* (46-11) vs. IPFW (32-14)
UAB (37-16) vs. UCLA (37-18)
Gainesville Regional – May 17-19 at Gainesville, Fla.
South Florida (43-14) vs. Georgia Southern (32-28)
Hampton (33-24) vs. No. 2 seed Florida* (52-7)
* Indicates host institution
No. 1 seed Oklahoma* (47-4) vs. Marist (30-24)
Fordham (35-21) vs. Arkansas (34-18)
College Station Regional – May 17-19 at College Station, Texas
Baylor (39-15) vs. Arizona (32-24)
Penn (30-18) vs. No. 16 seed Texas A&M* (39-15)
Baton Rouge Regional – May 17-19 at Baton Rouge, La.
No. 9 seed LSU* (40-14) vs. Central Connecticut State (35-13)
Northwestern State (40-13) vs. Louisiana-Lafayette (43-13)
Ann Arbor Regional – May 17-19 at Ann Arbor, Mich.
California (36-17) vs. Central Michigan (33-18)
Valparaiso (34-25) vs. No. 8 seed Michigan* (45-10)
Tempe Regional – May 17-19 at Tempe, Ariz.
No. 5 seed Arizona State* (45-10) vs. San Jose State (42-15)
Georgia (38-19) vs. San Diego State (35-18)
Lexington Regional – May 17-19 at Lexington, Ky.
Notre Dame (43-13) vs. Virginia Tech (35-19)
Marshall (35-20) vs. No. 12 seed Kentucky* (38-18)
Mobile Regional – May 17-19 at Mobile, Ala.
No. 13 seed South Alabama* (45-7) vs. Mississippi Valley (24-26)
Mississippi State (32-22) vs. Florida State (41-16)
Austin Regional – May 17-19 at Austin, Texas
Houston (40-18) vs. South Carolina (32-23)
Army (35-24) vs. No 4 seed Texas* (44-8)
Eugene Regional – May 16-18 at Eugene, Ore.
No. 3 seed Oregon* (46-9) vs. BYU (33-20)
North Carolina (39-19) vs. Wisconsin (42-11)
Lincoln Regional – May 17-19 at Lincoln, Neb.
Stanford (37-19) vs. Tulsa (42-14)
UNI (26-24) vs. No. 14 seed Nebraska* (40-13)
Washington Regional – May 17-19 at Seattle, Wash.
No. 11 seed Washington (38-15) vs. Portland State (25-29)
Minnesota (35-17) vs. Hawaii (43-11)
Columbia Regional – May 17-19 at Columbia, Mo.
Hofstra (43-11) vs. Oregon State (33-22)
Stony Brook (35-23) vs. No. 6 seed Missouri* (35-11)
Knoxville Regional – May 17-19 at Knoxville, Tenn.
No. 7 seed Tennessee* (44-10) vs. Longwood (35-17)
James Madison (41-15) vs. North Carolina State (33-18)
Tuscaloosa Regional – May 17-19 at Tuscaloosa, Ala.
Western Kentucky (41-16) vs. S.C. Upstate (41-10)
Jacksonville State (30-25) vs. No. 10 seed Alabama* (42-13)
Louisville Regional – May 17-19 at Louisville, Ky.
No. 15 seed Louisville* (46-11) vs. IPFW (32-14)
UAB (37-16) vs. UCLA (37-18)
Gainesville Regional – May 17-19 at Gainesville, Fla.
South Florida (43-14) vs. Georgia Southern (32-28)
Hampton (33-24) vs. No. 2 seed Florida* (52-7)
* Indicates host institution