CLEMSON, South Carolina (Ticker) -- Chrissy Floyd scored 23 points and dished out six assists, leading Clemson to a 93-75 upset of third-ranked Duke, which suffered its first loss of the season and its worst defeat in more than two years.
Erin Batth added 14 points and 10 rebounds and Marci Glenney scored 13 points for the Tigers (5-2), who had six players in double figures and shot 48 percent (26-of-54) from the field.
Clemson's only losses came to No. 2 Tennessee and to Illinois, which was ranked in the top 25.
Alana Beard led the Blue Devils (9-1) with 18 points and 10 rebounds, Georgia Schweitzer scored 12 and Rochelle Parent and freshman Iciss Tillis finished with 10 apiece.
The 18-point loss was Duke's worst since November 21, 1998, an 84-57 pounding by Notre Dame. Duke had not allowed more than 90 points since Connecticut recorded a 104-74 victory against the Blue Devils on November 13, 1998.
Batth and Floyd scored four points apiece in a 13-2 run to open the second half, stretching a four-point edge into a 54-39 advantage with 16:02 left.
Krista Gingrich hit a pair of 3-pointers in an 8-0 run later in the half that brought the Blue Devils within 57-49.
Duke still was within 71-62 when Beard scored inside with 8:20 left but Floyd scored four points in an 8-0 run that put Clemson up 79-62 with 5:16 to play and the Blue Devils did not threaten again.
The Tigers held the Blue Devils to 35 percent shooting (11-of-31) in the second half while shooting 52 percent (15-of-29).