Gullickson, who started tennis at the age of nine, preferred to play on grass pitches.
Her greatest sporting success was the 2009 mixed victory at the US Open with Travis Parrott . In the final, they defeated the number 2 defending champions Cara Black and Leander Paes in straight sets.
In individual cases, she entered the list of winners twice at ITF tournaments. In doubles, she also won two tournaments and 18 ITF titles on the WTA Tour with changing partners.
Since the end of April 2012, Gullickson has not competed on the women's tour, and it has not been in the world rankings since 2013.