|Peter van Paassen had a game-high 21 points for EiffelTowers|
Netherlands international Van Paassen led the way with 21 and fellow big man Beasley weighed in with 20 as the Dutch hosts prevailed 85-80 in the Group I contest.
In a tight game from beginning to end, Samara outfit Krasnye Krylia led 62-61 early in the fourth quarter after two free-throws by Ralph Biggs.
Beasley and Van Paassen hit jump shots to trigger a 9-2 spurt that put EiffelTowers in front to stay.
Anthony Richardson was also a beast down low for the home side with 17 points.
Den Bosch out-rebounded the visitors 42-35, with Beasley's 11 a game high.
Richardson and Van Paassen had eight boards apiece.
Dean Oliver was also outstanding for EiffelTowers with eight points and a team-best 10 assists.
Luis Flores had a game-high 23 points in defeat for the Russian team.
Ernest Bremer had 11 assists to go with his eight points for Krasnye.
Don Beck, EiffelTowers Head Coach:
"I'm extremely pleased for the players. This is the strongest outfit we've faced this year. We cut out the turnovers in the second and played very well tonight. We're in a unique situation that we have to play in Europe and compete in a lot of games in Holland. We have little time off. I'm going to enjoy this win with a cold beer, but there's another test on Sunday."
Anthony Richardson, EiffelTowers Forward:
"We have to give coach Beck the credit he deserves. We executed exactly what he told us. We got stops when we needed to. Coach Beck has always told us how important rebounds and defense are. We outrebounded them tonight and then we usually win games."