The Blue Devils began whooping and hollering, yelling "Go Duke."
It would be about the most life Duke would show all evening.
The UNC men's and women's teams both won their first four races and cruised to 227-65 and 184-104 wins, respectively, against the Blue Devils.
The women's team improved to 3-1 and 1-0 in the ACC with the win, while the men are 2-2, 1-0. Duke's women fell to 1-3, 0-3, while its men dropped to 0-4, 0-3.
Sophomore Jessi Perruquet, who won the 50-yard freestyle in 23.64 seconds and was a member of the winning 200-freestyle and medley-relay teams, said the quick start was important to the team's success.
"We couldn't take anything for granted," Perruquet said. "Duke is improving, and they have some great swimmers."
Juniors Janna Turner and Christy Watkins, also members of the winning relay teams, each won individual events. Turner won the 200 butterfly in 2 minutes, 10.01 seconds, and Watkins won the 100 butterfly in 57.43.
UNC's men were led by senior captains Kert Johnson and Chris Helin. Johnson swam on the victorious 200 freestyle and medley-relay teams, while Helin won the 200 butterfly in 1:50.91 and anchored the freestyle-relay team, which won with a time of 1:26.38.
Johnson said he was impressed by the team's focus against a perennially weak Duke squad.