In other singles action, Wildcat senior Michelle Gough dropped her opening round match to North Carolina's Julie Rotundi, 6-2, 7-5. UA freshman Debbie Larocque had her five-match winning streak snapped against Ole Miss' Alesia Ignatieva, 6-2, 6-4.
Blau will return to action Wednesday for her third round match against Ohio State's Kristi Dascoli. The winner advances to the tournament's main draw.
Lindsay Blau (UA) def. Lauren Barnikow (Stanford), 6-3, 6-4
Alesia Ignatieva (Ole Miss) def. Debbie Larocque (UA), 2-6, 4-6
Julie Rotundi (North Carolina) def. Michelle Gough (UA), 2-6, 5-7
Blau (UA) def. Christina Fusano (California), 6-4, 6-3