Long's six first quarter points finished as the team-high for the game with sophomore Abby Nagel adding five. Senior Addison Weber chipped in with a team-leading six rebounds and two steals. Freshman Hayley Humphrey came off the bench to haul in five boards.
The Beavers finished the game shooting 19.6 percent from the field (9-of-46) and 2-of-16 from downtown. The team couldn't overcome a season-high 31 turnovers which ultimately led to 40 points for the Knights.
Wartburg was led by Jaedon Murphy's 20 points and 10 rebounds. The Knights improve to 22-2 (15-0 A-R-C).
Buena Vista falls to 2-19 on the season and 1-13 in conference play. The team will wrap up its season with a pair of home games next week, starting with Simpson College on Wednesday, Feb. 14, at 5:30 p.m.