The Robbinsdale Armstrong girls are just 3-11 in conference play, but two of those wins have come against Elk River.
The Falcons (6-14 overall) topped the Elks 69-64 in Robbinsdale on Tuesday evening.
The Elks (4-11 conference, 7-12 overall) also lost to the Falcons 70-67 at home.
Lyrik Williams scored 19 points, Hana Sacic 18 and Rachel Russ 14 for the Falcons.
Abi Scheid logged 18 points and 15 rebounds for the Elks. Jaime Langbehn added 11 points.
The Elks made 21 of 29 free shots but were 1-for-10 on 3-pointers.
Elk River will host Blaine on Tuesday evening.
Elk scoring — Abi Scheid 18, Jaime Langbehn 11, Sidney Wentland 9, Shelby Gracik 8, Gabi Haack 7, Anna Rollag 5, Erin Ness 4, Molli Detloff 2