It's dangerous to be a seeded player this week on Hilton Head Island.
Michelle Sammons knocked off second-seeded Alexandra Mueller 6-0, 2-6, 6-2 on Thursday, leaving just three seeded players entering Friday's quarterfinals of the Head/First Federal Women's $10,000 USTA Pro Circuit Tournament.
Fourth-seeded Brooke Austin, a 6-2, 4-6, 6-2 winner over Belinda Woolcock, is the highest seed remaining. She is joined by seventh-seeded Katerina Stewart, a 6-3, 7-5 winner over Taylor Davidson, and eighth-seeded Hiroko Kuwata, a 7-5, 6-3 winner over Samantha Powers.
Hayley Carter, a Smith Stearns Academy senior who signed to play at North Carolina, dispatched American Amanda Rodgers 6-3, 6-2 to reach the quarterfinals.
In the doubles draw, top-seeded Kristy Frilling and Alexandra Mueller, second-seeded Erin Clark and Sonja Molnar and third-seeded Jessica Moore and Belinda Woolcock advanced to the semifinals.
ITF Women's Circuit -- Head/First Federal Women's $10,000
A USTA Pro Circuit event; Thursday's results at Van Der Meer Tennis Center, Hilton Head Island
Singles -- Second round
Nelly Ciolkowski (FRA) def. Sydney Campbell (USA) 6-2, 6-2
Hayley Carter (USA) def. Amanda Rodgers (USA) 6-3, 6-2
Brooke Austin (USA)  def. Belinda Woolcock (AUS) 6-2, 4-6, 6-2
Hiroko Kuwata (JPN)  def. Samantha Powers (USA) 7-5, 6-3
Katerina Stewart (USA)  def. Taylor L. Davidson (USA) 6-3, 7-5
Yana Koroleva (RUS) def. Jade Lewis (NZL) 6-0, 6-2
Alexis King (USA) def. Veronica M. Corning (USA) 6-3, 6-0
Michelle Sammons (RSA) def. Alexandra Mueller (USA)  6-0, 2-6, 6-2
Doubles -- Quarterfinals
Kristy Frilling (USA)/Alexandra Mueller (USA)  def. Alexandra Morozova (USA)/Denise Starr (USA) 6-3, 6-4
Jessica Moore (AUS)/Belinda Woolcock (AUS)  def. Nicole Robinson (USA)/Katerina Stewart (USA) 6-4, 7-5
Hayley Carter (USA)/Josie Kuhlman (USA) def. Brooke Austin (USA)/Brooke Rischbieth (AUS) 6-7(3), 6-2 [11-9]
Erin Clark (USA)/Sonja Molnar (CAN)  def. Sherry Li (USA)/Jainy Scheepens (NED) 6-2, 6-3
Singles -- Quarterfinals
Nelly Ciolkowski vs. Hayley Carter
Brooke Austin (4) vs. Hiroko Kuwata (8)
Katerina Stewart (7) vs. Yana Koroleva
Alexis King vs. Michelle Sammons
Doubles -- Semifinals
Frilling/Mueller (1) vs. Moore/Woolcock (3)
Carter/Kuhlman vs. Clark/Molnar (2)