Aryn VanAlstyne opened the scoring 13 minutes after receiving a throughball from Halaquist.
Halaquist then set up Vita Guglielmetti from 12 yards with five minutes left in the first to make it 2-0.
Cassidy Newman also contributed an assist for the Spartans.
Kaitlynn Finch made eight saves for Delhi.
Unatego (8-2, 6-0) will visit Walton on Thursday.
Milford 5, RS 0
Hannah Saggese, Addy Lawson and Emilie Mertz all finished with a goal and an assist to lead host Milford to a Tri-Valley League win.
Saggese opened the sixth minute. She scored from 20 yards after getting a throughball from Lawson. Ten minutes later, Mertz sent a throughball to Lawson, who finished on a breakaway.
Mertz capped the first-half scoring on a breakaway off a pass from Saggese.
Keira Higgins and Alyssa Quick also had goals for the Wildcats (9-1, 8-1), who will play at Worcester today.
Katie Swartout made eight saves for Richfield Springs.