GW (4-1) outscored host Bowling Green by 20 points in the second half, finishing with a 77-56 victory and sweeping their third game in as many days in Ohio.
The Colonials had an off night shooting the basketball, finishing at just 39.6 percent from the field, but GW (3-1) managed to escape the third round of the Progressive CBE Classic with a 54-52 win in Bowling Green, OH.
After giving up the first basket of the game to the Titans, GW (2-1) went on a 9-2 run over the first three and a half minutes of play, and did not lose the lead for the rest of the night, earning a 86-73 victory.
Cal used a 21-0 scoring run to hand GW its first loss of the season, falling 81-54 in Berkeley.
The match-ups against California, Kansas State, VCU and Syracuse were deemed the most challenging non-conference opponents GW will face. The next-toughest were Detroit and Austin Peay in the CBE Classic and UAB.
The upcoming season will be the first under Lonergan, and GW will play 14 of their 30 regular-season games at the Smith Center. Of those 14, six will feature opponents that reached the postseason, including NCAA Tournament teams UAB, Richmond and Xavier.
The three sub-regional games will take place over three days from Nov. 21 to 23. The Colonials open the Bowling Green Subregional against Detroit on Nov. 21 at 5 p.m., followed by a contest against Austin Peay on Nov. 22 at 5 p.m.
Cal posted an 18-15 overall record under head coach Mike Montgomery last season. The Bears advanced to their third straight postseason, reaching the second round of the National Invitational Tournament, and finished fifth of ten in the Pac-10 conference.