Dynamo Moscow crashed to their "worst defeat of the year" in a 91-62 drubbing at USO Mondeville, who won for the first time.
Caroline Aubert, the winner of the three-point shooting contest at the EuroLeague Women All Star event earlier this year, had 22 points for the French team.
And she did most of her damage from behind the arc, burying six of nine (66.6%).
As a team, USO were a scintillating 14 of 25 (56%) from three-point range.
Naura El Gargati was excellent for USO, finishing with 12 points, 13 rebounds and four assists in 13 minutes.
Olivier Hirsch, the coach of USO Mondeville, had plenty to smile about.
"We played a good game where we stayed concentrated for the whole time," he commented. "We had a lot of success in shooting, especially from three-point range."
Dynamo boss Ainars Zvirgzdins wasn't so happy with what he called his team's "worst game this year."
Dynamo are now 2-2 in Group D while USO are 1-3.