The Captains won both the men's and women's matches 9-0.
In the men's match, CNU (8-7, 2-1 USA South) did not drop a game in doubles to take the early 3-0 lead.
Christopher Newport then won the six singles matches in straight sets and lost just three games in the process.
Vladimir Daskalov had two of those game victories in a 6-1, 6-1 loss at No. 2 singles for the Hornets (0-10, 0-3).
In singles, Wong took the first set versus Sarah Stafford 7-5, but saw Stafford rally with a 6-1 victory in the second before clinching the point with a 10-5 win in a third set tiebreaker.
The SU women fall to 6-6 overall and 3-3 in the league with the defeat.
Both Shenandoah teams are in action Friday morning against Greensboro.