In 2006, she was also one of only two players (along with Lorena Ochoa) to finish in the top 20 in all four major championships. In total, she posted five top-10 finishes, including a tie for fourth at the Fields Open in Hawaii, the MasterCard Classic Honouring Alejo Peralta, and at the season-ending ADT Championship; she tied for fifth at the SBS Open at Turtle Bay and tied for seventh at the LPGA Corning Classic.
In 2008, Gulbis’s best finish was a tie for ninth at the RICOH Women's British Open; she also received the William and Mousie Powell Award.
In 2009, the American qualified for her third U.S. Solheim Cup Team after finishing 10th in the points race, she posted a 1-1-1 record for her winning squad; best finish was a tie for seventh at the Michelob ULTRA Open at Kingsmill; also finished tied for 10th at the SBS Open at Turtle Bay.
In 2010, her best finish of the season came at the Sime Darby LPGA Malaysia where she finished tied for 12th. She also tied for 14th at the U.S. Women's Open.
Finished tied for 15th at the LPGA 2011 State Farm Classic; tied for 18th at the Honda LPGA Thailand; tied for 20th at the ShopRite LPGA Classic; tied for 24th at the Safeway Classic Presented by Coca-Cola; tied for 24th at the HSBC Women's Champions; tied for 40th at the CN Canadian Women's Open; finished 74th at the RR Donnelley LPGA Founders Cup.
2012 saw Gulbis record 3 top ten finishes whilst making 16 cuts and finishing a season best T-4 at the Evian Masters.