Lindsay Johnson led the Indians with 15 points.
Irvington scored the first seven points of the game and led 24-4 early in the second quarter. Waterloo was down 18 at the half, but opened the third quarter on a 6-0 run to get within 41-29.
However, Irvington finished the third quarter on a 25-4 run and led 66-33 heading to the fourth. The 4th quarter was only about filling out the scoresheet.
Waterloo finishes the season 23-2.