Loe connected on a trio of 3-pointers while Kwamain Mitchell added 19 points for the Billikens (24-6, 13-3 A-10), who earned at least a share of the Atlantic 10 regular-season title.
Dwayne Evans chipped in with 16 points and 17 for St. Louis.
Tyrone Garland led the Explorers (21-8, 11-5) with 15 points. Tyreek Duren scored 13 and Sam Mills had 12.
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