2022
Eleven of sixteen higher seed teams advanced, 68.8%. Seeds 2, 6, 11, 13, and 15 did not advance.
- Mississippi State defeated 2 Florida.
- Stanford defeated 6 Alabama.
- Oregon State defeated 11 Tennessee.
- Texas defeated 13 Washington.
- Arizona defeated 15 Missouri.
Arizona, Texas, Oregon State, and Texas all advanced to the WCWS
2021
Fourteen of sixteen higher seed advance, 87.5%. Seeds 9 and 13 did not advance.
- JMU defeated 9 Tennessee.
- Georgia defeated 13 Duke, but they played in Athens, GA.
Both Georgia and JUM advanced to the WCWS.
2020
No tournament because of Covid.
2019
Fifteen of sixteen higher seed teams advanced, 93.8%.
- JMU defeated 15 Michigan.
2018
All sixteen seeds advanced to round two, 100%. In addition, all eight top seeds advanced to the WCWS.
2017
All sixteen seeds advanced to round two, 100%. Seeds 9, 10, 13, and 15 advanced to WCWS.
2016
Fourteen of sixteen higher seed advance, 87.5%. Seeds 9 and 13 did not advance.
- Utah defeated 9 Kentucky.
- Arizona defeated 13 Tennessee.
2015
Fourteen of sixteen higher seed advance, 87.5%. Seeds 15 and 16 did not advance.
- Kentucky defeated 16 Notre Dame.
- NC State defeated 15 James Madison.
All higher seeds advanced to the WCWS.
2014
Fourteen of sixteen higher seed advance, 87.5%. Seeds 9 and 15 did not advance.
- Michigan defeated 9 Arizona.
- Nebraska defeated 15 Missouri.
Kentucky 14 and Baylor 13 advanced to the WCWS.
2013
Fourteen of sixteen higher seed advance, 87.5%. Seeds 9 and 15 did not advance.
- Louisiana defeated 9 LSU.
- UAB defeated 15 Louisville.
Washington 11 and Nebraska 14 advanced to the WCWS.
2012
Twelve of sixteen higher seed advance, 75.0%. Seeds 5, 8, 12, and 15 did not advance.
- LSU defeated 8 Texas A&M.
- South Florida defeated 5 Florida.
- San Diego State defeated 12 UCLA.
- Michigan defeated 15 Louisville.
Oregon 11, South Florida, and LSU advanced to the WCWS.
The number of higher seeds advanced by the year.
2012 - 12
2013 - 14
2014 - 14
2015 - 14
2016 - 14
2017 - 16
2018 - 16
2019 - 15
2020 - No games played, Covid.
2021 - 14 - Georgia was a lower seed but advanced while playing at home.
2022 - 11
Higher seeds won 87.5%, or the home team won 88.1% of the time. Honestly, I did not think the numbers would be so lopsided. Twice in the last five years, all national seeds won and advanced.