The duo downed Mesa's Sabrina Sanchez and Ana Villalvavzo 8-2, and they'll play again the consolation bracket Tuesday.
Lopareva and Bankston each dropped their singles matches earlier in the day.
The tournament is scheduled to conclude either Thursday or Friday, depending on the weather.
NJCAA Division I Women's Tennis Championship
No. 1 singles: Morgan Bishop (Central Alabama) def. Margarita Lopareva (MGCCC) 8-2
No. 2 singles: Bar Shimoni (Broward) def. Megan Bankston (MGCCC) 8-3
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