Silver scored two in the first and stole three in the second on his way to a 9-0 win, while Weiss opened an early 4-0 lead and went on to down Jodi Judd 8-2.
Brian Adams Jr. came out on top with a five-time win over his former teammate, while Ron Rosengren's rink remained perfect with a 6-3 win over Dylan Johnston.
A 7-5 win over Krista McCarville on Wednesday night was enough to vault Adams Jr. in to first place over Al Hackner, who fell 10-6 to two-time defending champion Dylan Johnston in the regular-season finale.