Baldwin will play in the Nassau Class AA championship for the second consecutive season after defeating No. 4 MacArthur, 55-45, in the semifinals at Oyster Bay. Keira Corbin scored 17 points, Courtney Jackson had 15 points, and Alex Hampton 13 points, five assists, and four rebounds for Baldwin (18-1), which will play Farmingdale at 4 p.m. Saturday at C.W. Post. No. 1 Baldwin is the defending champions.