Spieth, Brown beat Central Connecticut State 67-55
Spieth made back-to-back 3-pointers and Rafael Maia added another to cap an 11-0 run, putting the Bears up 63-46 with 5:47 to go.
Brown (6-6) built most of its 36-21 halftime lead with a 9-0 run capped at 25-14 by Cedric Kuakumensah's layup with 5:40 left in the period.
Kuakumensah added 13 points, nine rebounds and five blocks, Tavon Blackmon scored 16 points and Maia grabbed 10 boards.
Brown overcame 21 turnovers by shooting 9 of 20 from 3-point range and outrebounding the Blue Devils 43-31.