Minutes later, McLoughlin made up for his earlier failure with a 34 field goal to put the Stampeders ahead 4-3.
On the final play of the third quarter, the Stamps capped a 14-play drive when Jeff Garcia ran in from the one for the touchdown to bring the Stampeders within one point of the Tiger-Cats with the score 18-17.
Aldi Henry intercepted a Danny McManus pass to give the Stamps possession at the 13:00 mark of the fourth quarter.
Archie Amerson made a terrific running play to take the ball to the two-yard line for the Ti-Cats.
Williams ran in from the four, but the two point convert attempt failed, giving Hamilton a 24-23 lead with three minutes remaining.
Rocco Romano won the Grey Cup in 1998 and rode a horse his jersey number was 59.