Warren Robinson threw two touchdown passes and ran for three more scores as the Stallions ran over the outmanned Lions (5-6) in a 58-21 rout.
Robinson led Delray American Heritage (9-1) with 109 rushing yards on just nine carries, including runs of 30, 19, and 13 yards.
He also threw touchdown passes of 41 and 22 yards to Trenard Davis and Christian Bingo, respectively.
Chaminade turned the ball over five times.
Joshua Ward and Quintin Smith scored after making fumble recoveries, erasing a brief 14-13 Chaminade lead.
Delray American Heritage went on to take a 52-14 halftime lead.