Saint Mary's, Texas, Georgetown, Tennessee-Chattanooga, Middle Tennessee and Florida Gulf Coast.
Each team -- either a recognizable name or one that boasts a top-100 ranking in the NCAA's Ratings Percentage Index -- has one common thread so far this season: A loss to a team from the Sun Belt Conference.
Texas-Arlington, the preseason conference favorite, has won at Texas and Saint Mary's, which is 19th in the Associated Press and coaches polls.
Georgia State won at Middle Tennessee, which boasts a No. 25 RPI ranking.
Georgia Southern beat Florida Gulf Coast, which is No. 92.