Dee was 9 of 9 from the free-throw line, and Rancifer was 5 of 9 from the field.
Jito Kok had a team-high six rebounds for the Toreros (10-8, 3-0 West Coast).
The Toreros led the entire game, building a 27-18 edge at halftime. San Diego shot 40.8 percent from the field for the game. Pepperdine shot 41.9 percent, but had 18 turnovers. San Diego made 26 points off Pepperdine's turnovers and had more second-chance points (22-12).
After San Diego took a 15-point lead in the second half, the Waves got no closer than six the rest of the game.
The Waves have a 56-38 series lead over San Diego.
NCAA title game hero Kris Jenkins said he will withdraw his name from the NBA draft and return to Villanova for his senior season.
Andy Katz breaks down the likelihood of Villanova, Syracuse, North Carolina or Oklahoma making a run to the Final Four next season.
Florida State has announced that Xavier Rathan-Mayes will return to the court for his junior season. The 6-foot-4 guard declared for the NBA draft last month but did not hire an agent.