Luther got back-to-back singles in the second before a Beaver error scored the game's only run. Senior Chancey Wilcke suffered the hard-luck loss on the mound, scattering seven hits in a complete-game effort, while striking out two.
Senior Aphton Roberts tallied the only hit for Buena Vista in the contest, as all eight hits in the contest were singles.
The Norse then put together a two-out, bases empty rally in the third to take a 3-0 lead before getting a three-run home run in the fourth for the game's final runs.
Wilcke took the loss for Buena Vista, allowing three runs (two earned), while striking out two in 2.2 innings of work. Jami Webster pitched 3.1 innings and was charged with three runs on five hits.
Five different Beavers tallied singles in the contest.
Buena Vista is now 13-11 overall (3-5 IIAC) and will return to action again on Wednesday afternoon for an Iowa Conference home doubleheader against Loras College beginning at 3:00pm.