UC Santa Barbara led 32-31 at halftime and never trailed in the second half. Louisiana's Dou Gueye hit a 3-pointer to tie it at 45 with 13:09 remaining before Ramsey buried a 3 25 seconds later and the Gauchos held on from there.
UC Santa Barbara now has won four straight and nine of its last 10. The Gauchos host NAIA-member Westmont on Thursday before starting Big West Conference action at Cal Poly on Jan. 8.
Losers of five straight, Louisiana starts Sun Belt Conference action when it hosts South Alabama on Thursday.
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